988766879 has 2 divisors, whose sum is σ = 988766880. Its totient is φ = 988766878.

The previous prime is 988766851. The next prime is 988766921. The reversal of 988766879 is 978667889.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 988766879 - 2¹² = 988762783 is a prime.

It is a super-3 number, since 3×988766879³ (a number of 28 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988766819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494383439 + 494383440.

It is an arithmetic number, because the mean of its divisors is an integer number (494383440).

Almost surely, 2^988766879 is an apocalyptic number.

988766879 is a deficient number, since it is larger than the sum of its proper divisors (1).

988766879 is an equidigital number, since it uses as much as digits as its factorization.

988766879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73156608, while the sum is 68.

The square root of 988766879 is about 31444.6637603266. The cubic root of 988766879 is about 996.2415178429.

The spelling of 988766879 in words is "nine hundred eighty-eight million, seven hundred sixty-six thousand, eight hundred seventy-nine".