74232979 has 2 divisors, whose sum is σ = 74232980. Its totient is φ = 74232978.

The previous prime is 74232967. The next prime is 74232997. The reversal of 74232979 is 97923247.

It is a happy number.

Together with next prime (74232997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74232979 - 2⁵ = 74232947 is a prime.

It is not a weakly prime, because it can be changed into another prime (74232079) 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, 37116489 + 37116490.

It is an arithmetic number, because the mean of its divisors is an integer number (37116490).

Almost surely, 2^74232979 is an apocalyptic number.

74232979 is a deficient number, since it is larger than the sum of its proper divisors (1).

74232979 is an equidigital number, since it uses as much as digits as its factorization.

74232979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 43.

The square root of 74232979 is about 8615.8562546041. The cubic root of 74232979 is about 420.2737803011.

The spelling of 74232979 in words is "seventy-four million, two hundred thirty-two thousand, nine hundred seventy-nine".