90605982 has 32 divisors (see below), whose sum is σ = 186792480. Its totient is φ = 29281280.

The previous prime is 90605953. The next prime is 90605987. The reversal of 90605982 is 28950609.

It is a happy number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 90605982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90605987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41494 + ... + 43622.

It is an arithmetic number, because the mean of its divisors is an integer number (5837265).

Almost surely, 2^90605982 is an apocalyptic number.

90605982 is an abundant number, since it is smaller than the sum of its proper divisors (96186498).

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

90605982 is a wasteful number, since it uses less digits than its factorization.

90605982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 90605982 is about 9518.7174556239. The cubic root of 90605982 is about 449.1440221973.

The spelling of 90605982 in words is "ninety million, six hundred five thousand, nine hundred eighty-two".