90447960 has 64 divisors (see below), whose sum is σ = 283150080. Its totient is φ = 23070080.

The previous prime is 90447947. The next prime is 90447967. The reversal of 90447960 is 6974409.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90447967) 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, 13626 + ... + 19145.

It is an arithmetic number, because the mean of its divisors is an integer number (4424220).

Almost surely, 2^90447960 is an apocalyptic number.

It is an amenable number.

90447960 is an abundant number, since it is smaller than the sum of its proper divisors (192702120).

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

90447960 is a wasteful number, since it uses less digits than its factorization.

90447960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32808 (or 32804 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 90447960 is about 9510.4132402330. The cubic root of 90447960 is about 448.8827593226.

The spelling of 90447960 in words is "ninety million, four hundred forty-seven thousand, nine hundred sixty".