90087412 has 12 divisors (see below), whose sum is σ = 164507616. Its totient is φ = 43085240.

The previous prime is 90087407. The next prime is 90087419. The reversal of 90087412 is 21478009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90087419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489514 + ... + 489697.

It is an arithmetic number, because the mean of its divisors is an integer number (13708968).

Almost surely, 2^90087412 is an apocalyptic number.

90087412 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

90087412 is a deficient number, since it is larger than the sum of its proper divisors (74420204).

90087412 is a wasteful number, since it uses less digits than its factorization.

90087412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979238 (or 979236 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 90087412 is about 9491.4388793270. The cubic root of 90087412 is about 448.2855123589.

The spelling of 90087412 in words is "ninety million, eighty-seven thousand, four hundred twelve".