75749590 has 24 divisors (see below), whose sum is σ = 158611392. Its totient is φ = 25971120.

The previous prime is 75749587. The next prime is 75749621. The reversal of 75749590 is 9594757.

It is a happy number.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 75749590.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 76806 + ... + 77785.

It is an arithmetic number, because the mean of its divisors is an integer number (6608808).

Almost surely, 2^75749590 is an apocalyptic number.

75749590 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

75749590 is an abundant number, since it is smaller than the sum of its proper divisors (82861802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75749590 is a wasteful number, since it uses less digits than its factorization.

75749590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154612 (or 154605 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 75749590 is about 8703.4240388482. The cubic root of 75749590 is about 423.1166305008.

The spelling of 75749590 in words is "seventy-five million, seven hundred forty-nine thousand, five hundred ninety".