90613790 has 32 divisors (see below), whose sum is σ = 172385280. Its totient is φ = 34223904.

The previous prime is 90613781. The next prime is 90613799. The reversal of 90613790 is 9731609.

It is an interprime number because it is at equal distance from previous prime (90613781) and next prime (90613799).

It is a self number, because there is not a number n which added to its sum of digits gives 90613790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90613799) 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 15 ways as a sum of consecutive naturals, for example, 15677 + ... + 20663.

It is an arithmetic number, because the mean of its divisors is an integer number (5387040).

Almost surely, 2^90613790 is an apocalyptic number.

90613790 is a deficient number, since it is larger than the sum of its proper divisors (81771490).

90613790 is a wasteful number, since it uses less digits than its factorization.

90613790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5096.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 90613790 is about 9519.1275860764. The cubic root of 90613790 is about 449.1569235375.

The spelling of 90613790 in words is "ninety million, six hundred thirteen thousand, seven hundred ninety".