89990526 has 8 divisors (see below), whose sum is σ = 179981064. Its totient is φ = 29996840.

The previous prime is 89990519. The next prime is 89990543. The reversal of 89990526 is 62509998.

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

89990526 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7499205 + ... + 7499216.

It is an arithmetic number, because the mean of its divisors is an integer number (22497633).

Almost surely, 2^89990526 is an apocalyptic number.

89990526 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

89990526 is a wasteful number, since it uses less digits than its factorization.

89990526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14998426.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 89990526 is about 9486.3336437214. Note that the first 3 decimals coincide. The cubic root of 89990526 is about 448.1247493526.

The spelling of 89990526 in words is "eighty-nine million, nine hundred ninety thousand, five hundred twenty-six".