3865732 has 24 divisors (see below), whose sum is σ = 7715736. Its totient is φ = 1678848.

The previous prime is 3865691. The next prime is 3865733. The reversal of 3865732 is 2375683.

It can be written as a sum of positive squares in 4 ways, for example, as 538756 + 3326976 = 734^2 + 1824^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a d-powerful number, because it can be written as 3 + 8⁷ + 6⁸ + 5⁷ + 7⁴ + 3⁵ + 2¹³ .

It is not an unprimeable number, because it can be changed into a prime (3865733) 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, 1303 + ... + 3070.

It is an arithmetic number, because the mean of its divisors is an integer number (321489).

Almost surely, 2^3865732 is an apocalyptic number.

It is an amenable number.

3865732 is a deficient number, since it is larger than the sum of its proper divisors (3850004).

3865732 is a wasteful number, since it uses less digits than its factorization.

3865732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4407 (or 4405 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 3865732 is about 1966.1464848785. The cubic root of 3865732 is about 156.9437097891.

It can be divided in two parts, 386573 and 2, that multiplied together give a triangular number (773146 = T₁₂₄₃).

The spelling of 3865732 in words is "three million, eight hundred sixty-five thousand, seven hundred thirty-two".