74336891 has 2 divisors, whose sum is σ = 74336892. Its totient is φ = 74336890.

The previous prime is 74336879. The next prime is 74336917. The reversal of 74336891 is 19863347.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74336891 - 2¹⁴ = 74320507 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74333891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37168445 + 37168446.

It is an arithmetic number, because the mean of its divisors is an integer number (37168446).

Almost surely, 2^74336891 is an apocalyptic number.

74336891 is a deficient number, since it is larger than the sum of its proper divisors (1).

74336891 is an equidigital number, since it uses as much as digits as its factorization.

74336891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 74336891 is about 8621.8844227930. The cubic root of 74336891 is about 420.4697898925.

The spelling of 74336891 in words is "seventy-four million, three hundred thirty-six thousand, eight hundred ninety-one".