8490701025 has 27 divisors (see below), whose sum is σ = 15210264979. Its totient is φ = 4527636720.

The previous prime is 8490701003. The next prime is 8490701039. The reversal of 8490701025 is 5201070948.

The square root of 8490701025 is 92145.

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., 3056652369 + 5434048656 = 55287^2 + 73716^2 .

It is not a de Polignac number, because 8490701025 - 2⁹ = 8490700513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1379104 + ... + 1385246.

Almost surely, 2^8490701025 is an apocalyptic number.

8490701025 is the 92145-th square number.

8490701025 is the 46073-rd centered octagonal number.

It is an amenable number.

8490701025 is a deficient number, since it is larger than the sum of its proper divisors (6719563954).

8490701025 is an frugal number, since it uses more digits than its factorization.

8490701025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12302 (or 6151 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The cubic root of 8490701025 is about 2040.0830596228.

Multiplying 8490701025 by its sum of digits (36), we get a square (305665236900 = 552870²).

The spelling of 8490701025 in words is "eight billion, four hundred ninety million, seven hundred one thousand, twenty-five".