3997875 has 32 divisors (see below), whose sum is σ = 7607808. Its totient is φ = 1826400.

The previous prime is 3997871. The next prime is 3997891. The reversal of 3997875 is 5787993.

It is not a de Polignac number, because 3997875 - 2² = 3997871 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3997871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1864 + ... + 3386.

It is an arithmetic number, because the mean of its divisors is an integer number (237744).

Almost surely, 2^3997875 is an apocalyptic number.

3997875 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3997875 is a deficient number, since it is larger than the sum of its proper divisors (3609933).

3997875 is a wasteful number, since it uses less digits than its factorization.

3997875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548 (or 1538 counting only the distinct ones).

The product of its digits is 476280, while the sum is 48.

The square root of 3997875 is about 1999.4686794246. The cubic root of 3997875 is about 158.7119899905.

The spelling of 3997875 in words is "three million, nine hundred ninety-seven thousand, eight hundred seventy-five".