99576761 has 2 divisors, whose sum is σ = 99576762. Its totient is φ = 99576760.

The previous prime is 99576751. The next prime is 99576767. The reversal of 99576761 is 16767599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61136761 + 38440000 = 7819^2 + 6200^2 .

It is an emirp because it is prime and its reverse (16767599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99576761 - 2¹⁰ = 99575737 is a prime.

It is a super-2 number, since 2×99576761² = 19831062662502242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99576767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49788380 + 49788381.

It is an arithmetic number, because the mean of its divisors is an integer number (49788381).

Almost surely, 2^99576761 is an apocalyptic number.

It is an amenable number.

99576761 is a deficient number, since it is larger than the sum of its proper divisors (1).

99576761 is an equidigital number, since it uses as much as digits as its factorization.

99576761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 714420, while the sum is 50.

The square root of 99576761 is about 9978.8156110833. The cubic root of 99576761 is about 463.5031235401.

The spelling of 99576761 in words is "ninety-nine million, five hundred seventy-six thousand, seven hundred sixty-one".