90990526 has 8 divisors (see below), whose sum is σ = 148893624. Its totient is φ = 41359320.

The previous prime is 90990517. The next prime is 90990527. The reversal of 90990526 is 62509909.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90990527) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2067945 + ... + 2067988.

It is an arithmetic number, because the mean of its divisors is an integer number (18611703).

Almost surely, 2^90990526 is an apocalyptic number.

90990526 is a deficient number, since it is larger than the sum of its proper divisors (57903098).

90990526 is a wasteful number, since it uses less digits than its factorization.

90990526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135946.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 90990526 is about 9538.8954287171. The cubic root of 90990526 is about 449.7785346462.

The spelling of 90990526 in words is "ninety million, nine hundred ninety thousand, five hundred twenty-six".