988766553 has 16 divisors (see below), whose sum is σ = 1350736640. Its totient is φ = 643026384.

The previous prime is 988766543. The next prime is 988766557. The reversal of 988766553 is 355667889.

It is not a de Polignac number, because 988766553 - 2⁹ = 988766041 is a prime.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 988766493 and 988766502.

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 in 15 ways as a sum of consecutive naturals, for example, 106350 + ... + 115272.

It is an arithmetic number, because the mean of its divisors is an integer number (84421040).

Almost surely, 2^988766553 is an apocalyptic number.

It is an amenable number.

988766553 is a deficient number, since it is larger than the sum of its proper divisors (361970087).

988766553 is a wasteful number, since it uses less digits than its factorization.

988766553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9828.

The product of its digits is 10886400, while the sum is 57.

The square root of 988766553 is about 31444.6585766168. The cubic root of 988766553 is about 996.2414083547.

The spelling of 988766553 in words is "nine hundred eighty-eight million, seven hundred sixty-six thousand, five hundred fifty-three".