3929913 has 12 divisors (see below), whose sum is σ = 6113380. Its totient is φ = 2418336.

The previous prime is 3929879. The next prime is 3929917. The reversal of 3929913 is 3199293.

It can be written as a sum of positive squares in 2 ways, for example, as 2518569 + 1411344 = 1587^2 + 1188^2 .

It is not a de Polignac number, because 3929913 - 2⁸ = 3929657 is a prime.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3929917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16678 + ... + 16911.

Almost surely, 2^3929913 is an apocalyptic number.

It is an amenable number.

3929913 is a deficient number, since it is larger than the sum of its proper divisors (2183467).

3929913 is a wasteful number, since it uses less digits than its factorization.

3929913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33608 (or 33605 counting only the distinct ones).

The product of its digits is 13122, while the sum is 36.

The square root of 3929913 is about 1982.4008171911. The cubic root of 3929913 is about 157.8075020408.

The spelling of 3929913 in words is "three million, nine hundred twenty-nine thousand, nine hundred thirteen".