3929868 has 36 divisors (see below), whose sum is σ = 10007088. Its totient is φ = 1300320.

The previous prime is 3929857. The next prime is 3929879. The reversal of 3929868 is 8689293.

It is an interprime number because it is at equal distance from previous prime (3929857) and next prime (3929879).

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5913 + ... + 6543.

Almost surely, 2^3929868 is an apocalyptic number.

It is an amenable number.

3929868 is an abundant number, since it is smaller than the sum of its proper divisors (6077220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3929868 is a wasteful number, since it uses less digits than its factorization.

3929868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814 (or 809 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 3929868 is about 1982.3894672844. The cubic root of 3929868 is about 157.8068997065.

The spelling of 3929868 in words is "three million, nine hundred twenty-nine thousand, eight hundred sixty-eight".