99708877 has 2 divisors, whose sum is σ = 99708878. Its totient is φ = 99708876.

The previous prime is 99708871. The next prime is 99708881. The reversal of 99708877 is 77880799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85766121 + 13942756 = 9261^2 + 3734^2 .

It is an emirp because it is prime and its reverse (77880799) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99708877 is a prime.

It is a super-3 number, since 3×99708877³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99708871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49854438 + 49854439.

It is an arithmetic number, because the mean of its divisors is an integer number (49854439).

Almost surely, 2^99708877 is an apocalyptic number.

It is an amenable number.

99708877 is a deficient number, since it is larger than the sum of its proper divisors (1).

99708877 is an equidigital number, since it uses as much as digits as its factorization.

99708877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1778112, while the sum is 55.

The square root of 99708877 is about 9985.4332404758. The cubic root of 99708877 is about 463.7080211346.

The spelling of 99708877 in words is "ninety-nine million, seven hundred eight thousand, eight hundred seventy-seven".