988766554 has 4 divisors (see below), whose sum is σ = 1483149834. Its totient is φ = 494383276.

The previous prime is 988766543. The next prime is 988766557. The reversal of 988766554 is 455667889.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 455667889 = 18691 ⋅24379.

It can be written as a sum of positive squares in only one way, i.e., 925802329 + 62964225 = 30427^2 + 7935^2 .

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (988766557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247191637 + ... + 247191640.

Almost surely, 2^988766554 is an apocalyptic number.

988766554 is a deficient number, since it is larger than the sum of its proper divisors (494383280).

988766554 is a wasteful number, since it uses less digits than its factorization.

988766554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494383279.

The product of its digits is 14515200, while the sum is 58.

The square root of 988766554 is about 31444.6585925177. The cubic root of 988766554 is about 996.2414086906.

The spelling of 988766554 in words is "nine hundred eighty-eight million, seven hundred sixty-six thousand, five hundred fifty-four".