75900613 has 4 divisors (see below), whose sum is σ = 75977740. Its totient is φ = 75823488.

The previous prime is 75900607. The next prime is 75900623. The reversal of 75900613 is 31600957.

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 67617729 + 8282884 = 8223^2 + 2878^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75900613 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 (75900623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37068 + ... + 39061.

It is an arithmetic number, because the mean of its divisors is an integer number (18994435).

Almost surely, 2^75900613 is an apocalyptic number.

It is an amenable number.

75900613 is a deficient number, since it is larger than the sum of its proper divisors (77127).

75900613 is an equidigital number, since it uses as much as digits as its factorization.

75900613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77126.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 75900613 is about 8712.0957868931. The cubic root of 75900613 is about 423.3976349856.

The spelling of 75900613 in words is "seventy-five million, nine hundred thousand, six hundred thirteen".