75313479 has 4 divisors (see below), whose sum is σ = 100417976. Its totient is φ = 50208984.

The previous prime is 75313457. The next prime is 75313487. The reversal of 75313479 is 97431357.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 75313479 - 2⁹ = 75312967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75313429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12552244 + ... + 12552249.

It is an arithmetic number, because the mean of its divisors is an integer number (25104494).

Almost surely, 2^75313479 is an apocalyptic number.

75313479 is a deficient number, since it is larger than the sum of its proper divisors (25104497).

75313479 is a wasteful number, since it uses less digits than its factorization.

75313479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25104496.

The product of its digits is 79380, while the sum is 39.

The square root of 75313479 is about 8678.3338838743. Note that the first 3 decimals coincide. The cubic root of 75313479 is about 422.3030680087.

The spelling of 75313479 in words is "seventy-five million, three hundred thirteen thousand, four hundred seventy-nine".