99476521 has 2 divisors, whose sum is σ = 99476522. Its totient is φ = 99476520.

The previous prime is 99476513. The next prime is 99476527. The reversal of 99476521 is 12567499.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98010000 + 1466521 = 9900^2 + 1211^2 .

It is a cyclic number.

It is not a de Polignac number, because 99476521 - 2³ = 99476513 is a prime.

It is not a weakly prime, because it can be changed into another prime (99476527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49738260 + 49738261.

It is an arithmetic number, because the mean of its divisors is an integer number (49738261).

Almost surely, 2^99476521 is an apocalyptic number.

It is an amenable number.

99476521 is a deficient number, since it is larger than the sum of its proper divisors (1).

99476521 is an equidigital number, since it uses as much as digits as its factorization.

99476521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The square root of 99476521 is about 9973.7917062670. The cubic root of 99476521 is about 463.3475412145.

The spelling of 99476521 in words is "ninety-nine million, four hundred seventy-six thousand, five hundred twenty-one".