90223872 has 72 divisors (see below), whose sum is σ = 248468640. Its totient is φ = 29030400.

The previous prime is 90223853. The next prime is 90223883. The reversal of 90223872 is 27832209.

It is a super-3 number, since 3×90223872³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

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, 20247 + ... + 24297.

Almost surely, 2^90223872 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 90223872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124234320).

90223872 is an abundant number, since it is smaller than the sum of its proper divisors (158244768).

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

90223872 is a wasteful number, since it uses less digits than its factorization.

90223872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4099 (or 4085 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 90223872 is about 9498.6247425614. The cubic root of 90223872 is about 448.5117451489.

The spelling of 90223872 in words is "ninety million, two hundred twenty-three thousand, eight hundred seventy-two".