3890907 has 6 divisors (see below), whose sum is σ = 5620212. Its totient is φ = 2593932.

The previous prime is 3890879. The next prime is 3890927. The reversal of 3890907 is 7090983.

It is not a de Polignac number, because 3890907 - 2⁸ = 3890651 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (3890927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216153 + ... + 216170.

It is an arithmetic number, because the mean of its divisors is an integer number (936702).

Almost surely, 2^3890907 is an apocalyptic number.

3890907 is a deficient number, since it is larger than the sum of its proper divisors (1729305).

3890907 is a wasteful number, since it uses less digits than its factorization.

3890907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432329 (or 432326 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 3890907 is about 1972.5382125576. The cubic root of 3890907 is about 157.2836636797.

The spelling of 3890907 in words is "three million, eight hundred ninety thousand, nine hundred seven".