988890507 has 12 divisors (see below), whose sum is σ = 1558251864. Its totient is φ = 599327520.

The previous prime is 988890491. The next prime is 988890509. The reversal of 988890507 is 705098889.

It is not a de Polignac number, because 988890507 - 2⁴ = 988890491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (988890509) 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, 4994298 + ... + 4994495.

It is an arithmetic number, because the mean of its divisors is an integer number (129854322).

Almost surely, 2^988890507 is an apocalyptic number.

988890507 is a deficient number, since it is larger than the sum of its proper divisors (569361357).

988890507 is a wasteful number, since it uses less digits than its factorization.

988890507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9988810 (or 9988807 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The square root of 988890507 is about 31446.6295014267. The cubic root of 988890507 is about 996.2830369701.

The spelling of 988890507 in words is "nine hundred eighty-eight million, eight hundred ninety thousand, five hundred seven".