90352287 has 16 divisors (see below), whose sum is σ = 134068480. Its totient is φ = 60138936.

The previous prime is 90352267. The next prime is 90352289. The reversal of 90352287 is 78225309.

It is a happy number.

It is not a de Polignac number, because 90352287 - 2¹⁵ = 90319519 is a prime.

It is a super-2 number, since 2×90352287² = 16327071532260738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90352289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17328 + ... + 21930.

It is an arithmetic number, because the mean of its divisors is an integer number (8379280).

Almost surely, 2^90352287 is an apocalyptic number.

90352287 is a deficient number, since it is larger than the sum of its proper divisors (43716193).

90352287 is a wasteful number, since it uses less digits than its factorization.

90352287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5339 (or 5333 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 90352287 is about 9505.3820017925. The cubic root of 90352287 is about 448.7244321422.

The spelling of 90352287 in words is "ninety million, three hundred fifty-two thousand, two hundred eighty-seven".