90514728 has 96 divisors (see below), whose sum is σ = 256356360. Its totient is φ = 28823040.

The previous prime is 90514703. The next prime is 90514733. The reversal of 90514728 is 82741509.

It can be written as a sum of positive squares in 4 ways, for example, as 52099524 + 38415204 = 7218^2 + 6198^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 90514692 and 90514701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162226 + ... + 162782.

Almost surely, 2^90514728 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 90514728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128178180).

90514728 is an abundant number, since it is smaller than the sum of its proper divisors (165841632).

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

90514728 is a wasteful number, since it uses less digits than its factorization.

90514728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 90514728 is about 9513.9228502232. The cubic root of 90514728 is about 448.9931861076.

The spelling of 90514728 in words is "ninety million, five hundred fourteen thousand, seven hundred twenty-eight".