90232471 has 6 divisors (see below), whose sum is σ = 104964360. Its totient is φ = 77342076.

The previous prime is 90232469. The next prime is 90232477. The reversal of 90232471 is 17423209.

It is not a de Polignac number, because 90232471 - 2¹ = 90232469 is a prime.

It is a super-3 number, since 3×90232471³ (a number of 25 digits) contains 333 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 (90232477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 920691 + ... + 920788.

It is an arithmetic number, because the mean of its divisors is an integer number (17494060).

Almost surely, 2^90232471 is an apocalyptic number.

90232471 is a deficient number, since it is larger than the sum of its proper divisors (14731889).

90232471 is a wasteful number, since it uses less digits than its factorization.

90232471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841493 (or 1841486 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 90232471 is about 9499.0773762508. The cubic root of 90232471 is about 448.5259935213.

The spelling of 90232471 in words is "ninety million, two hundred thirty-two thousand, four hundred seventy-one".