90087030 has 48 divisors (see below), whose sum is σ = 255522384. Its totient is φ = 21839040.

The previous prime is 90087007. The next prime is 90087043. The reversal of 90087030 is 3078009.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 90086985 and 90087003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44509 + ... + 46488.

It is an arithmetic number, because the mean of its divisors is an integer number (5323383).

Almost surely, 2^90087030 is an apocalyptic number.

90087030 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

90087030 is an abundant number, since it is smaller than the sum of its proper divisors (165435354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90087030 is a wasteful number, since it uses less digits than its factorization.

90087030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91021 (or 91018 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 90087030 is about 9491.4187559079. The cubic root of 90087030 is about 448.2848787325.

The spelling of 90087030 in words is "ninety million, eighty-seven thousand, thirty".