90471996 has 72 divisors (see below), whose sum is σ = 249085200. Its totient is φ = 27578880.

The previous prime is 90471973. The next prime is 90472001. The reversal of 90471996 is 69917409.

90471996 is a `hidden beast` number, since 90 + 471 + 9 + 96 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17556 + ... + 22116.

Almost surely, 2^90471996 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 90471996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124542600).

90471996 is an abundant number, since it is smaller than the sum of its proper divisors (158613204).

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

90471996 is a wasteful number, since it uses less digits than its factorization.

90471996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4619 (or 4614 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 90471996 is about 9511.6768237782. The cubic root of 90471996 is about 448.9225184298.

It can be divided in two parts, 904 and 71996, that added together give a square (72900 = 270²).

The spelling of 90471996 in words is "ninety million, four hundred seventy-one thousand, nine hundred ninety-six".