99884977 has 2 divisors, whose sum is σ = 99884978. Its totient is φ = 99884976.

The previous prime is 99884969. The next prime is 99884987. The reversal of 99884977 is 77948899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71166096 + 28718881 = 8436^2 + 5359^2 .

It is a cyclic number.

It is not a de Polignac number, because 99884977 - 2³ = 99884969 is a prime.

It is not a weakly prime, because it can be changed into another prime (99884927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49942488 + 49942489.

It is an arithmetic number, because the mean of its divisors is an integer number (49942489).

Almost surely, 2^99884977 is an apocalyptic number.

It is an amenable number.

99884977 is a deficient number, since it is larger than the sum of its proper divisors (1).

99884977 is an equidigital number, since it uses as much as digits as its factorization.

99884977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 61.

The square root of 99884977 is about 9994.2471952619. The cubic root of 99884977 is about 463.9808519273.

The spelling of 99884977 in words is "ninety-nine million, eight hundred eighty-four thousand, nine hundred seventy-seven".