74979453 has 16 divisors (see below), whose sum is σ = 106572800. Its totient is φ = 46753200.

The previous prime is 74979449. The next prime is 74979497. The reversal of 74979453 is 35497947.

It is a happy number.

It is not a de Polignac number, because 74979453 - 2² = 74979449 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74979433) 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 in 15 ways as a sum of consecutive naturals, for example, 3823 + ... + 12828.

It is an arithmetic number, because the mean of its divisors is an integer number (6660800).

Almost surely, 2^74979453 is an apocalyptic number.

It is an amenable number.

74979453 is a deficient number, since it is larger than the sum of its proper divisors (31593347).

74979453 is a wasteful number, since it uses less digits than its factorization.

74979453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16752.

The product of its digits is 952560, while the sum is 48.

The square root of 74979453 is about 8659.0676749867. The cubic root of 74979453 is about 421.6778179980.

The spelling of 74979453 in words is "seventy-four million, nine hundred seventy-nine thousand, four hundred fifty-three".