99380590 has 32 divisors (see below), whose sum is σ = 182961504. Its totient is φ = 38855040.

The previous prime is 99380587. The next prime is 99380609. The reversal of 99380590 is 9508399.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119757 + ... + 120583.

It is an arithmetic number, because the mean of its divisors is an integer number (5717547).

Almost surely, 2^99380590 is an apocalyptic number.

99380590 is a deficient number, since it is larger than the sum of its proper divisors (83580914).

99380590 is a wasteful number, since it uses less digits than its factorization.

99380590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 99380590 is about 9968.9813922988. The cubic root of 99380590 is about 463.1985489746.

It can be divided in two parts, 99 and 380590, that added together give a square (380689 = 617²).

The spelling of 99380590 in words is "ninety-nine million, three hundred eighty thousand, five hundred ninety".