988637725 has 24 divisors (see below), whose sum is σ = 1272186432. Its totient is φ = 761577600.

The previous prime is 988637717. The next prime is 988637821. The reversal of 988637725 is 527736889.

It is not a de Polignac number, because 988637725 - 2³ = 988637717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69849 + ... + 82801.

It is an arithmetic number, because the mean of its divisors is an integer number (53007768).

Almost surely, 2^988637725 is an apocalyptic number.

It is an amenable number.

988637725 is a deficient number, since it is larger than the sum of its proper divisors (283548707).

988637725 is a wasteful number, since it uses less digits than its factorization.

988637725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13077 (or 13072 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 55.

The square root of 988637725 is about 31442.6100220704. The cubic root of 988637725 is about 996.1981391718.

The spelling of 988637725 in words is "nine hundred eighty-eight million, six hundred thirty-seven thousand, seven hundred twenty-five".