90748636 has 48 divisors (see below), whose sum is σ = 184988160. Its totient is φ = 38517120.

The previous prime is 90748633. The next prime is 90748649. The reversal of 90748636 is 63684709.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 90748592 and 90748601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90748633) 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, 60285 + ... + 61771.

It is an arithmetic number, because the mean of its divisors is an integer number (3853920).

Almost surely, 2^90748636 is an apocalyptic number.

It is an amenable number.

90748636 is an abundant number, since it is smaller than the sum of its proper divisors (94239524).

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

90748636 is a wasteful number, since it uses less digits than its factorization.

90748636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594 (or 1592 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 90748636 is about 9526.2078499264. The cubic root of 90748636 is about 449.3796158940.

The spelling of 90748636 in words is "ninety million, seven hundred forty-eight thousand, six hundred thirty-six".