99976517 has 2 divisors, whose sum is σ = 99976518. Its totient is φ = 99976516.

The previous prime is 99976511. The next prime is 99976523. The reversal of 99976517 is 71567999.

It is a balanced prime because it is at equal distance from previous prime (99976511) and next prime (99976523).

It can be written as a sum of positive squares in only one way, i.e., 87628321 + 12348196 = 9361^2 + 3514^2 .

It is an emirp because it is prime and its reverse (71567999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99976517 - 2⁶ = 99976453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99976511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49988258 + 49988259.

It is an arithmetic number, because the mean of its divisors is an integer number (49988259).

Almost surely, 2^99976517 is an apocalyptic number.

It is an amenable number.

99976517 is a deficient number, since it is larger than the sum of its proper divisors (1).

99976517 is an equidigital number, since it uses as much as digits as its factorization.

99976517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1071630, while the sum is 53.

The square root of 99976517 is about 9998.8257810605. The cubic root of 99976517 is about 464.1225477067.

The spelling of 99976517 in words is "ninety-nine million, nine hundred seventy-six thousand, five hundred seventeen".