90682128 has 30 divisors (see below), whose sum is σ = 253784414. Its totient is φ = 30227328.

The previous prime is 90682093. The next prime is 90682139. The reversal of 90682128 is 82128609.

It can be written as a sum of positive squares in only one way, i.e., 79067664 + 11614464 = 8892^2 + 3408^2 .

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 = 90682092 and 90682101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 314725 + ... + 315012.

Almost surely, 2^90682128 is an apocalyptic number.

It is an amenable number.

90682128 is an abundant number, since it is smaller than the sum of its proper divisors (163102286).

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

90682128 is a wasteful number, since it uses less digits than its factorization.

90682128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629751 (or 629742 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 90682128 is about 9522.7164191737. The cubic root of 90682128 is about 449.2698083895.

The spelling of 90682128 in words is "ninety million, six hundred eighty-two thousand, one hundred twenty-eight".