75479313 has 32 divisors (see below), whose sum is σ = 124751872. Its totient is φ = 39528000.

The previous prime is 75479291. The next prime is 75479323. The reversal of 75479313 is 31397457.

It is a happy number.

It is not a de Polignac number, because 75479313 - 2⁶ = 75479249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75479323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40308 + ... + 42138.

It is an arithmetic number, because the mean of its divisors is an integer number (3898496).

Almost surely, 2^75479313 is an apocalyptic number.

It is an amenable number.

75479313 is a deficient number, since it is larger than the sum of its proper divisors (49272559).

75479313 is a wasteful number, since it uses less digits than its factorization.

75479313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005.

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

The square root of 75479313 is about 8687.8831138546. The cubic root of 75479313 is about 422.6127994981.

The spelling of 75479313 in words is "seventy-five million, four hundred seventy-nine thousand, three hundred thirteen".