3929975 has 24 divisors (see below), whose sum is σ = 5901408. Its totient is φ = 2534400.

The previous prime is 3929969. The next prime is 3929977. The reversal of 3929975 is 5799293.

It is not a de Polignac number, because 3929975 - 2⁸ = 3929719 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 (3929977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2315 + ... + 3635.

It is an arithmetic number, because the mean of its divisors is an integer number (245892).

Almost surely, 2^3929975 is an apocalyptic number.

3929975 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3929975 is a deficient number, since it is larger than the sum of its proper divisors (1971433).

3929975 is a wasteful number, since it uses less digits than its factorization.

3929975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355 (or 1350 counting only the distinct ones).

The product of its digits is 153090, while the sum is 44.

The square root of 3929975 is about 1982.4164547340. The cubic root of 3929975 is about 157.8083319162.

The spelling of 3929975 in words is "three million, nine hundred twenty-nine thousand, nine hundred seventy-five".