3928965 has 16 divisors (see below), whose sum is σ = 6421248. Its totient is φ = 2050496.

The previous prime is 3928961. The next prime is 3928973. The reversal of 3928965 is 5698293.

It is a cyclic number.

It is not a de Polignac number, because 3928965 - 2² = 3928961 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2082 + ... + 3491.

It is an arithmetic number, because the mean of its divisors is an integer number (401328).

Almost surely, 2^3928965 is an apocalyptic number.

It is an amenable number.

3928965 is a deficient number, since it is larger than the sum of its proper divisors (2492283).

3928965 is a wasteful number, since it uses less digits than its factorization.

3928965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5628.

The product of its digits is 116640, while the sum is 42.

The square root of 3928965 is about 1982.1616987521. The cubic root of 3928965 is about 157.7948118920.

The spelling of 3928965 in words is "three million, nine hundred twenty-eight thousand, nine hundred sixty-five".