90266997 has 8 divisors (see below), whose sum is σ = 120961600. Its totient is φ = 59875200.

The previous prime is 90266989. The next prime is 90267011. The reversal of 90266997 is 79966209.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90266997 - 2³ = 90266989 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 (90266977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75004 + ... + 76197.

It is an arithmetic number, because the mean of its divisors is an integer number (15120200).

Almost surely, 2^90266997 is an apocalyptic number.

It is an amenable number.

90266997 is a deficient number, since it is larger than the sum of its proper divisors (30694603).

90266997 is a wasteful number, since it uses less digits than its factorization.

90266997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151403.

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 90266997 is about 9500.8945368318. The cubic root of 90266997 is about 448.5831933060.

The spelling of 90266997 in words is "ninety million, two hundred sixty-six thousand, nine hundred ninety-seven".