90866736 has 60 divisors (see below), whose sum is σ = 255244080. Its totient is φ = 30176640.

The previous prime is 90866731. The next prime is 90866747. The reversal of 90866736 is 63766809.

It is a super-2 number, since 2×90866736² = 16513527422587392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90866691 and 90866700.

It is not an unprimeable number, because it can be changed into a prime (90866731) 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, 43770 + ... + 45798.

It is an arithmetic number, because the mean of its divisors is an integer number (4254068).

Almost surely, 2^90866736 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 90866736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127622040).

90866736 is an abundant number, since it is smaller than the sum of its proper divisors (164377344).

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

90866736 is a wasteful number, since it uses less digits than its factorization.

90866736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354 (or 2345 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 90866736 is about 9532.4045235187. The cubic root of 90866736 is about 449.5744718137.

The spelling of 90866736 in words is "ninety million, eight hundred sixty-six thousand, seven hundred thirty-six".