90437616 has 60 divisors (see below), whose sum is σ = 254718568. Its totient is φ = 29953152.

The previous prime is 90437609. The next prime is 90437621. The reversal of 90437616 is 61673409.

90437616 is a `hidden beast` number, since 9 + 0 + 4 + 37 + 616 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 21546 + ... + 25398.

Almost surely, 2^90437616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90437616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127359284).

90437616 is an abundant number, since it is smaller than the sum of its proper divisors (164280952).

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

90437616 is a wasteful number, since it uses less digits than its factorization.

90437616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030 (or 4021 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 90437616 is about 9509.8693997342. The cubic root of 90437616 is about 448.8656466452.

The spelling of 90437616 in words is "ninety million, four hundred thirty-seven thousand, six hundred sixteen".