75612857 has 4 divisors (see below), whose sum is σ = 75688080. Its totient is φ = 75537636.

The previous prime is 75612841. The next prime is 75612893. The reversal of 75612857 is 75821657.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75612857 - 2⁴ = 75612841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75612827) 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, 36083 + ... + 38120.

It is an arithmetic number, because the mean of its divisors is an integer number (18922020).

Almost surely, 2^75612857 is an apocalyptic number.

It is an amenable number.

75612857 is a deficient number, since it is larger than the sum of its proper divisors (75223).

75612857 is a wasteful number, since it uses less digits than its factorization.

75612857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75222.

The product of its digits is 117600, while the sum is 41.

The square root of 75612857 is about 8695.5653640232. The cubic root of 75612857 is about 422.8618927027.

The spelling of 75612857 in words is "seventy-five million, six hundred twelve thousand, eight hundred fifty-seven".