90881622 has 32 divisors (see below), whose sum is σ = 217496160. Its totient is φ = 27963360.

The previous prime is 90881611. The next prime is 90881663. The reversal of 90881622 is 22618809.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64029 + ... + 65432.

It is an arithmetic number, because the mean of its divisors is an integer number (6796755).

Almost surely, 2^90881622 is an apocalyptic number.

90881622 is an abundant number, since it is smaller than the sum of its proper divisors (126614538).

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

90881622 is a wasteful number, since it uses less digits than its factorization.

90881622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129485 (or 129479 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 90881622 is about 9533.1853018810. The cubic root of 90881622 is about 449.5990205850.

The spelling of 90881622 in words is "ninety million, eight hundred eighty-one thousand, six hundred twenty-two".