3890457 has 16 divisors (see below), whose sum is σ = 5832000. Its totient is φ = 2562912.

The previous prime is 3890431. The next prime is 3890503. The reversal of 3890457 is 7540983.

It is not a de Polignac number, because 3890457 - 2⁷ = 3890329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3890417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1594 + ... + 3212.

It is an arithmetic number, because the mean of its divisors is an integer number (364500).

Almost surely, 2^3890457 is an apocalyptic number.

It is an amenable number.

3890457 is a deficient number, since it is larger than the sum of its proper divisors (1941543).

3890457 is a wasteful number, since it uses less digits than its factorization.

3890457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717 (or 1711 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 3890457 is about 1972.4241430281. The cubic root of 3890457 is about 157.2775999369.

The spelling of 3890457 in words is "three million, eight hundred ninety thousand, four hundred fifty-seven".