3900451 has 4 divisors (see below), whose sum is σ = 4026304. Its totient is φ = 3774600.

The previous prime is 3900439. The next prime is 3900469. The reversal of 3900451 is 1540093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1540093 = 271 ⋅5683.

It is a cyclic number.

It is not a de Polignac number, because 3900451 - 2¹⁵ = 3867683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3910451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62880 + ... + 62941.

It is an arithmetic number, because the mean of its divisors is an integer number (1006576).

Almost surely, 2^3900451 is an apocalyptic number.

3900451 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3900451 is a deficient number, since it is larger than the sum of its proper divisors (125853).

3900451 is a wasteful number, since it uses less digits than its factorization.

3900451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125852.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 3900451 is about 1974.9559488758. The cubic root of 3900451 is about 157.4121589632.

The spelling of 3900451 in words is "three million, nine hundred thousand, four hundred fifty-one".