74979727 has 2 divisors, whose sum is σ = 74979728. Its totient is φ = 74979726.

The previous prime is 74979713. The next prime is 74979733. The reversal of 74979727 is 72797947.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74979727 - 2¹⁵ = 74946959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74979227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37489863 + 37489864.

It is an arithmetic number, because the mean of its divisors is an integer number (37489864).

Almost surely, 2^74979727 is an apocalyptic number.

74979727 is a deficient number, since it is larger than the sum of its proper divisors (1).

74979727 is an equidigital number, since it uses as much as digits as its factorization.

74979727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555848, while the sum is 52.

The square root of 74979727 is about 8659.0834965370. The cubic root of 74979727 is about 421.6783316480.

The spelling of 74979727 in words is "seventy-four million, nine hundred seventy-nine thousand, seven hundred twenty-seven".