75799657 has 4 divisors (see below), whose sum is σ = 76535680. Its totient is φ = 75063636.

The previous prime is 75799639. The next prime is 75799663. The reversal of 75799657 is 75699757.

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 75799657 - 2²³ = 67411049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75799598 and 75799607.

It is not an unprimeable number, because it can be changed into a prime (75799357) 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, 367857 + ... + 368062.

It is an arithmetic number, because the mean of its divisors is an integer number (19133920).

Almost surely, 2^75799657 is an apocalyptic number.

It is an amenable number.

75799657 is a deficient number, since it is larger than the sum of its proper divisors (736023).

75799657 is a wasteful number, since it uses less digits than its factorization.

75799657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736022.

The product of its digits is 4167450, while the sum is 55.

The square root of 75799657 is about 8706.2998455142. The cubic root of 75799657 is about 423.2098301902.

The spelling of 75799657 in words is "seventy-five million, seven hundred ninety-nine thousand, six hundred fifty-seven".