998645325 has 12 divisors (see below), whose sum is σ = 1651093728. Its totient is φ = 532610800.

The previous prime is 998645321. The next prime is 998645353. The reversal of 998645325 is 523546899.

It is not a de Polignac number, because 998645325 - 2² = 998645321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998645321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6657561 + ... + 6657710.

It is an arithmetic number, because the mean of its divisors is an integer number (137591144).

Almost surely, 2^998645325 is an apocalyptic number.

It is an amenable number.

998645325 is a deficient number, since it is larger than the sum of its proper divisors (652448403).

998645325 is a wasteful number, since it uses less digits than its factorization.

998645325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13315284 (or 13315279 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 51.

The square root of 998645325 is about 31601.3500502748. The cubic root of 998645325 is about 999.5482376081.

The spelling of 998645325 in words is "nine hundred ninety-eight million, six hundred forty-five thousand, three hundred twenty-five".