74454859 has 2 divisors, whose sum is σ = 74454860. Its totient is φ = 74454858.

The previous prime is 74454857. The next prime is 74454881. The reversal of 74454859 is 95845447.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74454859 - 2¹ = 74454857 is a prime.

Together with 74454857, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (74454851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37227429 + 37227430.

It is an arithmetic number, because the mean of its divisors is an integer number (37227430).

Almost surely, 2^74454859 is an apocalyptic number.

74454859 is a deficient number, since it is larger than the sum of its proper divisors (1).

74454859 is an equidigital number, since it uses as much as digits as its factorization.

74454859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 46.

The square root of 74454859 is about 8628.7229066647. The cubic root of 74454859 is about 420.6920920998.

The spelling of 74454859 in words is "seventy-four million, four hundred fifty-four thousand, eight hundred fifty-nine".