74855899 has 2 divisors, whose sum is σ = 74855900. Its totient is φ = 74855898.

The previous prime is 74855887. The next prime is 74855903. The reversal of 74855899 is 99855847.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74855899 - 2¹¹ = 74853851 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74855399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37427949 + 37427950.

It is an arithmetic number, because the mean of its divisors is an integer number (37427950).

Almost surely, 2^74855899 is an apocalyptic number.

74855899 is a deficient number, since it is larger than the sum of its proper divisors (1).

74855899 is an equidigital number, since it uses as much as digits as its factorization.

74855899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 55.

The square root of 74855899 is about 8651.9303626416. The cubic root of 74855899 is about 421.4460717319.

The spelling of 74855899 in words is "seventy-four million, eight hundred fifty-five thousand, eight hundred ninety-nine".