90749718 has 24 divisors (see below), whose sum is σ = 197306928. Its totient is φ = 30144912.

The previous prime is 90749717. The next prime is 90749753. The reversal of 90749718 is 81794709.

It is a super-2 number, since 2×90749718² = 16471022634159048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90749717) 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, 3330 + ... + 13877.

It is an arithmetic number, because the mean of its divisors is an integer number (8221122).

Almost surely, 2^90749718 is an apocalyptic number.

90749718 is an abundant number, since it is smaller than the sum of its proper divisors (106557210).

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

90749718 is a wasteful number, since it uses less digits than its factorization.

90749718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17508 (or 17505 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 90749718 is about 9526.2646404559. The cubic root of 90749718 is about 449.3814018779.

It can be divided in two parts, 907 and 49718, that added together give a 4-th power (50625 = 15⁴).

The spelling of 90749718 in words is "ninety million, seven hundred forty-nine thousand, seven hundred eighteen".