90792193 has 4 divisors (see below), whose sum is σ = 91812420. Its totient is φ = 89771968.

The previous prime is 90792187. The next prime is 90792197. The reversal of 90792193 is 39129709.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16711744 + 74080449 = 4088^2 + 8607^2 .

It is a cyclic number.

It is not a de Polignac number, because 90792193 - 2¹⁷ = 90661121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90792197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509980 + ... + 510157.

It is an arithmetic number, because the mean of its divisors is an integer number (22953105).

Almost surely, 2^90792193 is an apocalyptic number.

It is an amenable number.

90792193 is a deficient number, since it is larger than the sum of its proper divisors (1020227).

90792193 is a wasteful number, since it uses less digits than its factorization.

90792193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020226.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 90792193 is about 9528.4937424548. The cubic root of 90792193 is about 449.4515012615.

The spelling of 90792193 in words is "ninety million, seven hundred ninety-two thousand, one hundred ninety-three".