3937965 has 16 divisors (see below), whose sum is σ = 6671808. Its totient is φ = 1976576.

The previous prime is 3937951. The next prime is 3937981. The reversal of 3937965 is 5697393.

It is a cyclic number.

It is not a de Polignac number, because 3937965 - 2⁴ = 3937949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7467 + ... + 7976.

It is an arithmetic number, because the mean of its divisors is an integer number (416988).

Almost surely, 2^3937965 is an apocalyptic number.

It is an amenable number.

3937965 is a deficient number, since it is larger than the sum of its proper divisors (2733843).

3937965 is a wasteful number, since it uses less digits than its factorization.

3937965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15468.

The product of its digits is 153090, while the sum is 42.

The square root of 3937965 is about 1984.4306488260. The cubic root of 3937965 is about 157.9152057966.

The spelling of 3937965 in words is "three million, nine hundred thirty-seven thousand, nine hundred sixty-five".