3880731 has 16 divisors (see below), whose sum is σ = 5507840. Its totient is φ = 2423520.

The previous prime is 3880729. The next prime is 3880733. The reversal of 3880731 is 1370883.

It is an interprime number because it is at equal distance from previous prime (3880729) and next prime (3880733).

It is not a de Polignac number, because 3880731 - 2¹ = 3880729 is a prime.

It is a super-2 number, since 2×3880731² = 30120146188722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3880733) 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, 5541 + ... + 6201.

It is an arithmetic number, because the mean of its divisors is an integer number (344240).

Almost surely, 2^3880731 is an apocalyptic number.

3880731 is a deficient number, since it is larger than the sum of its proper divisors (1627109).

3880731 is a wasteful number, since it uses less digits than its factorization.

3880731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 3880731 is about 1969.9571061320. The cubic root of 3880731 is about 157.1464278213.

The spelling of 3880731 in words is "three million, eight hundred eighty thousand, seven hundred thirty-one".