90782712 has 48 divisors (see below), whose sum is σ = 246345840. Its totient is φ = 30202368.

The previous prime is 90782711. The next prime is 90782717. The reversal of 90782712 is 21728709.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90782711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52648 + ... + 54344.

It is an arithmetic number, because the mean of its divisors is an integer number (5132205).

Almost surely, 2^90782712 is an apocalyptic number.

It is an amenable number.

90782712 is an abundant number, since it is smaller than the sum of its proper divisors (155563128).

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

90782712 is a wasteful number, since it uses less digits than its factorization.

90782712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452 (or 2445 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 90782712 is about 9527.9962216617. The cubic root of 90782712 is about 449.4358560175.

The spelling of 90782712 in words is "ninety million, seven hundred eighty-two thousand, seven hundred twelve".