75479579 has 8 divisors (see below), whose sum is σ = 87890400. Its totient is φ = 63475776.

The previous prime is 75479563. The next prime is 75479581. The reversal of 75479579 is 97597457.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75479579 - 2⁴ = 75479563 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75479579.

It is not an unprimeable number, because it can be changed into a prime (75479539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101354 + ... + 102095.

It is an arithmetic number, because the mean of its divisors is an integer number (10986300).

Almost surely, 2^75479579 is an apocalyptic number.

75479579 is a deficient number, since it is larger than the sum of its proper divisors (12410821).

75479579 is a wasteful number, since it uses less digits than its factorization.

75479579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203509.

The product of its digits is 2778300, while the sum is 53.

The square root of 75479579 is about 8687.8984225185. The cubic root of 75479579 is about 422.6132959471.

The spelling of 75479579 in words is "seventy-five million, four hundred seventy-nine thousand, five hundred seventy-nine".