99604537 has 2 divisors, whose sum is σ = 99604538. Its totient is φ = 99604536.

The previous prime is 99604529. The next prime is 99604553. The reversal of 99604537 is 73540699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71503936 + 28100601 = 8456^2 + 5301^2 .

It is an emirp because it is prime and its reverse (73540699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99604537 - 2³ = 99604529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99604493 and 99604502.

It is not a weakly prime, because it can be changed into another prime (99604507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49802268 + 49802269.

It is an arithmetic number, because the mean of its divisors is an integer number (49802269).

Almost surely, 2^99604537 is an apocalyptic number.

It is an amenable number.

99604537 is a deficient number, since it is larger than the sum of its proper divisors (1).

99604537 is an equidigital number, since it uses as much as digits as its factorization.

99604537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 99604537 is about 9980.2072623769. The cubic root of 99604537 is about 463.5462161444.

The spelling of 99604537 in words is "ninety-nine million, six hundred four thousand, five hundred thirty-seven".