3932865 has 48 divisors (see below), whose sum is σ = 7429968. Its totient is φ = 1916928.

The previous prime is 3932861. The next prime is 3932869. The reversal of 3932865 is 5682393.

It is an interprime number because it is at equal distance from previous prime (3932861) and next prime (3932869).

It can be written as a sum of positive squares in 8 ways, for example, as 106929 + 3825936 = 327^2 + 1956^2 .

It is not a de Polignac number, because 3932865 - 2² = 3932861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3932861) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40497 + ... + 40593.

It is an arithmetic number, because the mean of its divisors is an integer number (154791).

Almost surely, 2^3932865 is an apocalyptic number.

It is an amenable number.

3932865 is a deficient number, since it is larger than the sum of its proper divisors (3497103).

3932865 is a wasteful number, since it uses less digits than its factorization.

3932865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 175 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 3932865 is about 1983.1452291751. The cubic root of 3932865 is about 157.8470051335.

It can be divided in two parts, 39328 and 65, that added together give a palindrome (39393).

The spelling of 3932865 in words is "three million, nine hundred thirty-two thousand, eight hundred sixty-five".