Search a number
-
+
3979407 = 32335693
BaseRepresentation
bin1111001011100010001111
321111011201110
433023202033
52004320112
6221143103
745552525
oct17134217
97434643
103979407
112278873
1213baa93
13a943a3
14758315
1553913c
hex3cb88f

3979407 has 8 divisors (see below), whose sum is σ = 5329584. Its totient is φ = 2641088.

The previous prime is 3979363. The next prime is 3979427. The reversal of 3979407 is 7049793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3979407 - 220 = 2930831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3979427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2148 + ... + 3545.

It is an arithmetic number, because the mean of its divisors is an integer number (666198).

Almost surely, 23979407 is an apocalyptic number.

3979407 is a deficient number, since it is larger than the sum of its proper divisors (1350177).

3979407 is a wasteful number, since it uses less digits than its factorization.

3979407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5929.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 3979407 is about 1994.8451067689. The cubic root of 3979407 is about 158.4672251259.

The spelling of 3979407 in words is "three million, nine hundred seventy-nine thousand, four hundred seven".

Divisors: 1 3 233 699 5693 17079 1326469 3979407