90267291 has 20 divisors (see below), whose sum is σ = 136864552. Its totient is φ = 59276448.

The previous prime is 90267269. The next prime is 90267293. The reversal of 90267291 is 19276209.

It is not a de Polignac number, because 90267291 - 2⁵ = 90267259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90267293) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2890 + ... + 13743.

Almost surely, 2^90267291 is an apocalyptic number.

90267291 is a deficient number, since it is larger than the sum of its proper divisors (46597261).

90267291 is a wasteful number, since it uses less digits than its factorization.

90267291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16712 (or 16703 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 90267291 is about 9500.9100090465. The cubic root of 90267291 is about 448.5836803179.

The spelling of 90267291 in words is "ninety million, two hundred sixty-seven thousand, two hundred ninety-one".