75506873 has 4 divisors (see below), whose sum is σ = 81315108. Its totient is φ = 69698640.

The previous prime is 75506831. The next prime is 75506887. The reversal of 75506873 is 37860557.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51955264 + 23551609 = 7208^2 + 4853^2 .

It is a cyclic number.

It is not a de Polignac number, because 75506873 - 2⁸ = 75506617 is a prime.

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 75506873.

It is not an unprimeable number, because it can be changed into a prime (75506803) 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, 2904098 + ... + 2904123.

It is an arithmetic number, because the mean of its divisors is an integer number (20328777).

Almost surely, 2^75506873 is an apocalyptic number.

It is an amenable number.

75506873 is a deficient number, since it is larger than the sum of its proper divisors (5808235).

75506873 is a wasteful number, since it uses less digits than its factorization.

75506873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5808234.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 75506873 is about 8689.4690861985. The cubic root of 75506873 is about 422.6642298878.

The spelling of 75506873 in words is "seventy-five million, five hundred six thousand, eight hundred seventy-three".