99976817 has 2 divisors, whose sum is σ = 99976818. Its totient is φ = 99976816.

The previous prime is 99976801. The next prime is 99976823. The reversal of 99976817 is 71867999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87310336 + 12666481 = 9344^2 + 3559^2 .

It is a cyclic number.

It is not a de Polignac number, because 99976817 - 2⁴ = 99976801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99976897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49988408 + 49988409.

It is an arithmetic number, because the mean of its divisors is an integer number (49988409).

Almost surely, 2^99976817 is an apocalyptic number.

It is an amenable number.

99976817 is a deficient number, since it is larger than the sum of its proper divisors (1).

99976817 is an equidigital number, since it uses as much as digits as its factorization.

99976817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1714608, while the sum is 56.

The square root of 99976817 is about 9998.8407828108. The cubic root of 99976817 is about 464.1230119378.

The spelling of 99976817 in words is "ninety-nine million, nine hundred seventy-six thousand, eight hundred seventeen".