75688689 has 4 divisors (see below), whose sum is σ = 100918256. Its totient is φ = 50459124.

The previous prime is 75688687. The next prime is 75688703. The reversal of 75688689 is 98688657.

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 not a de Polignac number, because 75688689 - 2¹ = 75688687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75688687) 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 3 ways as a sum of consecutive naturals, for example, 12614779 + ... + 12614784.

It is an arithmetic number, because the mean of its divisors is an integer number (25229564).

Almost surely, 2^75688689 is an apocalyptic number.

It is an amenable number.

75688689 is a deficient number, since it is larger than the sum of its proper divisors (25229567).

75688689 is a wasteful number, since it uses less digits than its factorization.

75688689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25229566.

The product of its digits is 5806080, while the sum is 57.

The square root of 75688689 is about 8699.9246548462. The cubic root of 75688689 is about 423.0032079520.

The spelling of 75688689 in words is "seventy-five million, six hundred eighty-eight thousand, six hundred eighty-nine".