90761216 has 96 divisors (see below), whose sum is σ = 223816320. Its totient is φ = 35831808.

The previous prime is 90761201. The next prime is 90761227. The reversal of 90761216 is 61216709.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186125 + ... + 186611.

It is an arithmetic number, because the mean of its divisors is an integer number (2331420).

Almost surely, 2^90761216 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 90761216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111908160).

90761216 is an abundant number, since it is smaller than the sum of its proper divisors (133055104).

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

90761216 is a wasteful number, since it uses less digits than its factorization.

90761216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 90761216 is about 9526.8681107697. The cubic root of 90761216 is about 449.4003799686.

The spelling of 90761216 in words is "ninety million, seven hundred sixty-one thousand, two hundred sixteen".