3957951 has 8 divisors (see below), whose sum is σ = 5289984. Its totient is φ = 2632280.

The previous prime is 3957937. The next prime is 3957953. The reversal of 3957951 is 1597593.

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 3957951 - 2⁹ = 3957439 is a prime.

It is a super-2 number, since 2×3957951² = 31330752236802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130 + ... + 2816.

It is an arithmetic number, because the mean of its divisors is an integer number (661248).

Almost surely, 2^3957951 is an apocalyptic number.

3957951 is a deficient number, since it is larger than the sum of its proper divisors (1332033).

3957951 is a wasteful number, since it uses less digits than its factorization.

3957951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181.

The product of its digits is 42525, while the sum is 39.

The square root of 3957951 is about 1989.4599769787. The cubic root of 3957951 is about 158.1819060702.

The spelling of 3957951 in words is "three million, nine hundred fifty-seven thousand, nine hundred fifty-one".