90749206 has 16 divisors (see below), whose sum is σ = 144903600. Its totient is φ = 42501888.

The previous prime is 90749203. The next prime is 90749227. The reversal of 90749206 is 60294709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90749203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10035 + ... + 16798.

It is an arithmetic number, because the mean of its divisors is an integer number (9056475).

Almost surely, 2^90749206 is an apocalyptic number.

90749206 is a deficient number, since it is larger than the sum of its proper divisors (54154394).

90749206 is a wasteful number, since it uses less digits than its factorization.

90749206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26943.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 90749206 is about 9526.2377673455. The cubic root of 90749206 is about 449.3805567560.

The spelling of 90749206 in words is "ninety million, seven hundred forty-nine thousand, two hundred six".