74026399 has 2 divisors, whose sum is σ = 74026400. Its totient is φ = 74026398.

The previous prime is 74026343. The next prime is 74026427. The reversal of 74026399 is 99362047.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74026399 - 2¹⁵ = 73993631 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74026339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37013199 + 37013200.

It is an arithmetic number, because the mean of its divisors is an integer number (37013200).

Almost surely, 2^74026399 is an apocalyptic number.

74026399 is a deficient number, since it is larger than the sum of its proper divisors (1).

74026399 is an equidigital number, since it uses as much as digits as its factorization.

74026399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 74026399 is about 8603.8595409270. The cubic root of 74026399 is about 419.8835637174.

The spelling of 74026399 in words is "seventy-four million, twenty-six thousand, three hundred ninety-nine".