90273528 has 112 divisors (see below), whose sum is σ = 265205520. Its totient is φ = 28740096.

The previous prime is 90273527. The next prime is 90273529. The reversal of 90273528 is 82537209.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90273527) and next prime (90273529).

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 = 90273492 and 90273501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90273523) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 133800 + ... + 134472.

Almost surely, 2^90273528 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 90273528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132602760).

90273528 is an abundant number, since it is smaller than the sum of its proper divisors (174931992).

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

90273528 is a wasteful number, since it uses less digits than its factorization.

90273528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 90273528 is about 9501.2382350934. The cubic root of 90273528 is about 448.5940116792.

The spelling of 90273528 in words is "ninety million, two hundred seventy-three thousand, five hundred twenty-eight".