90662293 has 4 divisors (see below), whose sum is σ = 90683680. Its totient is φ = 90640908.

The previous prime is 90662261. The next prime is 90662303. The reversal of 90662293 is 39226609.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90662293 - 2⁵ = 90662261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90662233) 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, 1953 + ... + 13606.

It is an arithmetic number, because the mean of its divisors is an integer number (22670920).

Almost surely, 2^90662293 is an apocalyptic number.

It is an amenable number.

90662293 is a deficient number, since it is larger than the sum of its proper divisors (21387).

90662293 is a wasteful number, since it uses less digits than its factorization.

90662293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21386.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 90662293 is about 9521.6749051834. The cubic root of 90662293 is about 449.2370495771.

The spelling of 90662293 in words is "ninety million, six hundred sixty-two thousand, two hundred ninety-three".