3897790 has 16 divisors (see below), whose sum is σ = 7555968. Its totient is φ = 1439136.

The previous prime is 3897749. The next prime is 3897797. The reversal of 3897790 is 977983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897797) 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, 14862 + ... + 15121.

It is an arithmetic number, because the mean of its divisors is an integer number (472248).

Almost surely, 2^3897790 is an apocalyptic number.

3897790 is a deficient number, since it is larger than the sum of its proper divisors (3658178).

3897790 is a wasteful number, since it uses less digits than its factorization.

3897790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30003.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 3897790 is about 1974.2821480224. The cubic root of 3897790 is about 157.3763537835.

The spelling of 3897790 in words is "three million, eight hundred ninety-seven thousand, seven hundred ninety".