890724025 has 27 divisors (see below), whose sum is σ = 1137453519. Its totient is φ = 691926480.

The previous prime is 890724019. The next prime is 890724053. The reversal of 890724025 is 520427098.

The square root of 890724025 is 29845.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 320660649 + 570063376 = 17907^2 + 23876^2 .

It is not a de Polignac number, because 890724025 - 2⁹ = 890723513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7013512 + ... + 7013638.

Almost surely, 2^890724025 is an apocalyptic number.

890724025 is the 29845-th square number.

890724025 is the 14923-rd centered octagonal number.

It is an amenable number.

890724025 is a deficient number, since it is larger than the sum of its proper divisors (246729494).

890724025 is an equidigital number, since it uses as much as digits as its factorization.

890724025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The cubic root of 890724025 is about 962.1609397737.

The spelling of 890724025 in words is "eight hundred ninety million, seven hundred twenty-four thousand, twenty-five".