90412497 has 48 divisors (see below), whose sum is σ = 160110720. Its totient is φ = 50240736.

The previous prime is 90412493. The next prime is 90412499. The reversal of 90412497 is 79421409.

It is not a de Polignac number, because 90412497 - 2² = 90412493 is a prime.

It is a super-2 number, since 2×90412497² = 16348839227550018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90412493) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48028 + ... + 49874.

It is an arithmetic number, because the mean of its divisors is an integer number (3335640).

Almost surely, 2^90412497 is an apocalyptic number.

It is an amenable number.

90412497 is a deficient number, since it is larger than the sum of its proper divisors (69698223).

90412497 is a wasteful number, since it uses less digits than its factorization.

90412497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 90412497 is about 9508.5486274194. The cubic root of 90412497 is about 448.8240853985.

It can be divided in two parts, 90412 and 497, that added together give a palindrome (90909).

The spelling of 90412497 in words is "ninety million, four hundred twelve thousand, four hundred ninety-seven".