3996965 has 8 divisors (see below), whose sum is σ = 5481600. Its totient is φ = 2740752.

The previous prime is 3996961. The next prime is 3996977. The reversal of 3996965 is 5696993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3996965 - 2² = 3996961 is a prime.

It is a super-2 number, since 2×3996965² = 31951458422450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3996961) 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, 57065 + ... + 57134.

It is an arithmetic number, because the mean of its divisors is an integer number (685200).

Almost surely, 2^3996965 is an apocalyptic number.

3996965 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3996965 is a deficient number, since it is larger than the sum of its proper divisors (1484635).

3996965 is a wasteful number, since it uses less digits than its factorization.

3996965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114211.

The product of its digits is 393660, while the sum is 47.

The square root of 3996965 is about 1999.2411060200. The cubic root of 3996965 is about 158.6999470202.

The spelling of 3996965 in words is "three million, nine hundred ninety-six thousand, nine hundred sixty-five".