75690388 has 12 divisors (see below), whose sum is σ = 133009492. Its totient is φ = 37687680.

The previous prime is 75690383. The next prime is 75690389. The reversal of 75690388 is 88309657.

It can be written as a sum of positive squares in 2 ways, for example, as 66618244 + 9072144 = 8162^2 + 3012^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75690383) 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, 38295 + ... + 40222.

Almost surely, 2^75690388 is an apocalyptic number.

It is an amenable number.

75690388 is a deficient number, since it is larger than the sum of its proper divisors (57319104).

75690388 is a wasteful number, since it uses less digits than its factorization.

75690388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78762 (or 78760 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 75690388 is about 8700.0222988220. The cubic root of 75690388 is about 423.0063730091.

The spelling of 75690388 in words is "seventy-five million, six hundred ninety thousand, three hundred eighty-eight".