90269487 has 24 divisors (see below), whose sum is σ = 162564480. Its totient is φ = 46892880.

The previous prime is 90269483. The next prime is 90269527. The reversal of 90269487 is 78496209.

It is a happy number.

It is not a de Polignac number, because 90269487 - 2² = 90269483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90269483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64437 + ... + 65822.

It is an arithmetic number, because the mean of its divisors is an integer number (6773520).

Almost surely, 2^90269487 is an apocalyptic number.

90269487 is a deficient number, since it is larger than the sum of its proper divisors (72294993).

90269487 is a wasteful number, since it uses less digits than its factorization.

90269487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130283 (or 130280 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 90269487 is about 9501.0255762207. The cubic root of 90269487 is about 448.5873179655.

The spelling of 90269487 in words is "ninety million, two hundred sixty-nine thousand, four hundred eighty-seven".