75799990 has 32 divisors (see below), whose sum is σ = 156260160. Its totient is φ = 25933824.

The previous prime is 75799967. The next prime is 75800009. The reversal of 75799990 is 9999757.

It is a zygodrome in base 8.

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 15 ways as a sum of consecutive naturals, for example, 46306 + ... + 47914.

It is an arithmetic number, because the mean of its divisors is an integer number (4883130).

Almost surely, 2^75799990 is an apocalyptic number.

75799990 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

75799990 is an abundant number, since it is smaller than the sum of its proper divisors (80460170).

75799990 is a wasteful number, since it uses less digits than its factorization.

75799990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296.

The product of its (nonzero) digits is 1607445, while the sum is 55.

The square root of 75799990 is about 8706.3189695761. The cubic root of 75799990 is about 423.2104499321.

The spelling of 75799990 in words is "seventy-five million, seven hundred ninety-nine thousand, nine hundred ninety".