Search a number
-
+
3893485 = 5778697
BaseRepresentation
bin1110110110100011101101
321022210212011
432312203231
51444042420
6215241221
745044161
oct16664355
97283764
103893485
11221a262
121379211
13a6424b
14734ca1
1551d95a
hex3b68ed

3893485 has 4 divisors (see below), whose sum is σ = 4672188. Its totient is φ = 3114784.

The previous prime is 3893479. The next prime is 3893489. The reversal of 3893485 is 5843983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5843983 = 6195803.

It can be written as a sum of positive squares in 2 ways, for example, as 749956 + 3143529 = 866^2 + 1773^2 .

It is a cyclic number.

It is not a de Polignac number, because 3893485 - 213 = 3885293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3893489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389344 + ... + 389353.

It is an arithmetic number, because the mean of its divisors is an integer number (1168047).

Almost surely, 23893485 is an apocalyptic number.

It is an amenable number.

3893485 is a deficient number, since it is larger than the sum of its proper divisors (778703).

3893485 is an equidigital number, since it uses as much as digits as its factorization.

3893485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778702.

The product of its digits is 103680, while the sum is 40.

The square root of 3893485 is about 1973.1915771156. The cubic root of 3893485 is about 157.3183931798.

Subtracting from 3893485 its sum of digits (40), we obtain a triangular number (3893445 = T2790).

The spelling of 3893485 in words is "three million, eight hundred ninety-three thousand, four hundred eighty-five".

Divisors: 1 5 778697 3893485