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BaseRepresentation
bin1110110110111110101101
321022220020011
432312332231
51444121323
6215253221
745052210
oct16667655
97286204
103895213
112220593
12137a211
13a64c7a
14735777
1551e20d

3895213 has 4 divisors (see below), whose sum is σ = 4451680. Its totient is φ = 3338748.

The previous prime is 3895183. The next prime is 3895231. The reversal of 3895213 is 3125983.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3125983 = 7446569.

It is not a de Polignac number, because 3895213 - 213 = 3887021 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 (3895813) 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, 278223 + ... + 278236.

It is an arithmetic number, because the mean of its divisors is an integer number (1112920).

Almost surely, 23895213 is an apocalyptic number.

It is an amenable number.

3895213 is a deficient number, since it is larger than the sum of its proper divisors (556467).

3895213 is an equidigital number, since it uses as much as digits as its factorization.

3895213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556466.

The product of its digits is 6480, while the sum is 31.

The square root of 3895213 is about 1973.6293978354. The cubic root of 3895213 is about 157.3416633329.

The spelling of 3895213 in words is "three million, eight hundred ninety-five thousand, two hundred thirteen".

Divisors: 1 7 556459 3895213