90621126 has 32 divisors (see below), whose sum is σ = 201801600. Its totient is φ = 30143880.

The previous prime is 90621119. The next prime is 90621131. The reversal of 90621126 is 62112609.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 90621126.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29365 + ... + 32303.

It is an arithmetic number, because the mean of its divisors is an integer number (6306300).

Almost surely, 2^90621126 is an apocalyptic number.

90621126 is an abundant number, since it is smaller than the sum of its proper divisors (111180474).

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

90621126 is a wasteful number, since it uses less digits than its factorization.

90621126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3521 (or 3515 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 90621126 is about 9519.5129077070. The cubic root of 90621126 is about 449.1690443059.

The spelling of 90621126 in words is "ninety million, six hundred twenty-one thousand, one hundred twenty-six".