99841537 has 2 divisors, whose sum is σ = 99841538. Its totient is φ = 99841536.

The previous prime is 99841529. The next prime is 99841541. The reversal of 99841537 is 73514899.

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., 57017601 + 42823936 = 7551^2 + 6544^2 .

It is an emirp because it is prime and its reverse (73514899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99841537 - 2³ = 99841529 is a prime.

It is not a weakly prime, because it can be changed into another prime (99841507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49920768 + 49920769.

It is an arithmetic number, because the mean of its divisors is an integer number (49920769).

Almost surely, 2^99841537 is an apocalyptic number.

It is an amenable number.

99841537 is a deficient number, since it is larger than the sum of its proper divisors (1).

99841537 is an equidigital number, since it uses as much as digits as its factorization.

99841537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 46.

The square root of 99841537 is about 9992.0737086953. The cubic root of 99841537 is about 463.9135803803.

The spelling of 99841537 in words is "ninety-nine million, eight hundred forty-one thousand, five hundred thirty-seven".