74955899 has 2 divisors, whose sum is σ = 74955900. Its totient is φ = 74955898.

The previous prime is 74955887. The next prime is 74955949. The reversal of 74955899 is 99855947.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74955899 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (74955809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37477949 + 37477950.

It is an arithmetic number, because the mean of its divisors is an integer number (37477950).

Almost surely, 2^74955899 is an apocalyptic number.

74955899 is a deficient number, since it is larger than the sum of its proper divisors (1).

74955899 is an equidigital number, since it uses as much as digits as its factorization.

74955899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4082400, while the sum is 56.

The square root of 74955899 is about 8657.7074910163. The cubic root of 74955899 is about 421.6336581687.

The spelling of 74955899 in words is "seventy-four million, nine hundred fifty-five thousand, eight hundred ninety-nine".