90522087 has 8 divisors (see below), whose sum is σ = 120935280. Its totient is φ = 60228480.

The previous prime is 90522073. The next prime is 90522121. The reversal of 90522087 is 78022509.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90522087 - 2¹² = 90517991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90522007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28114 + ... + 31167.

It is an arithmetic number, because the mean of its divisors is an integer number (15116910).

Almost surely, 2^90522087 is an apocalyptic number.

90522087 is a deficient number, since it is larger than the sum of its proper divisors (30413193).

90522087 is a wasteful number, since it uses less digits than its factorization.

90522087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59793.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 90522087 is about 9514.3095913471. The cubic root of 90522087 is about 449.0053537456.

The spelling of 90522087 in words is "ninety million, five hundred twenty-two thousand, eighty-seven".