90727854 has 32 divisors (see below), whose sum is σ = 207933696. Its totient is φ = 25852800.

The previous prime is 90727853. The next prime is 90727867. The reversal of 90727854 is 45872709.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90727853) 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, 14149 + ... + 19535.

It is an arithmetic number, because the mean of its divisors is an integer number (6497928).

Almost surely, 2^90727854 is an apocalyptic number.

90727854 is an abundant number, since it is smaller than the sum of its proper divisors (117205842).

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

90727854 is a wasteful number, since it uses less digits than its factorization.

90727854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5800.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 90727854 is about 9525.1170071553. The cubic root of 90727854 is about 449.3453097028.

The spelling of 90727854 in words is "ninety million, seven hundred twenty-seven thousand, eight hundred fifty-four".