99477577 has 2 divisors, whose sum is σ = 99477578. Its totient is φ = 99477576.

The previous prime is 99477563. The next prime is 99477583. The reversal of 99477577 is 77577499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98883136 + 594441 = 9944^2 + 771^2 .

It is an emirp because it is prime and its reverse (77577499) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99477577 is a prime.

It is not a weakly prime, because it can be changed into another prime (99474577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49738788 + 49738789.

It is an arithmetic number, because the mean of its divisors is an integer number (49738789).

Almost surely, 2^99477577 is an apocalyptic number.

It is an amenable number.

99477577 is a deficient number, since it is larger than the sum of its proper divisors (1).

99477577 is an equidigital number, since it uses as much as digits as its factorization.

99477577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3889620, while the sum is 55.

The square root of 99477577 is about 9973.8446448699. The cubic root of 99477577 is about 463.3491807748.

The spelling of 99477577 in words is "ninety-nine million, four hundred seventy-seven thousand, five hundred seventy-seven".