90774726 has 16 divisors (see below), whose sum is σ = 207485184. Its totient is φ = 25935624.

The previous prime is 90774709. The next prime is 90774737. The reversal of 90774726 is 62747709.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 2161303 = 90774726 / (9 + 0 + 7 + 7 + 4 + 7 + 2 + 6).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 1080610 + ... + 1080693.

It is an arithmetic number, because the mean of its divisors is an integer number (12967824).

Almost surely, 2^90774726 is an apocalyptic number.

90774726 is an abundant number, since it is smaller than the sum of its proper divisors (116710458).

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

90774726 is a wasteful number, since it uses less digits than its factorization.

90774726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161315.

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 90774726 is about 9527.5771316741. The cubic root of 90774726 is about 449.4226769297.

It can be divided in two parts, 90774 and 726, that multiplied together give a square (65901924 = 8118²).

The spelling of 90774726 in words is "ninety million, seven hundred seventy-four thousand, seven hundred twenty-six".