75042879 has 16 divisors (see below), whose sum is σ = 108200448. Its totient is φ = 46082432.

The previous prime is 75042857. The next prime is 75042883. The reversal of 75042879 is 97824057.

It is a cyclic number.

It is not a de Polignac number, because 75042879 - 2⁹ = 75042367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75042879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75042809) 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, 13257 + ... + 18050.

It is an arithmetic number, because the mean of its divisors is an integer number (6762528).

Almost surely, 2^75042879 is an apocalyptic number.

75042879 is a deficient number, since it is larger than the sum of its proper divisors (33157569).

75042879 is a wasteful number, since it uses less digits than its factorization.

75042879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31374.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 75042879 is about 8662.7293043244. The cubic root of 75042879 is about 421.7966852270.

The spelling of 75042879 in words is "seventy-five million, forty-two thousand, eight hundred seventy-nine".