90797444 has 12 divisors (see below), whose sum is σ = 160681500. Its totient is φ = 44888448.

The previous prime is 90797431. The next prime is 90797449. The reversal of 90797444 is 44479709.

It can be written as a sum of positive squares in 2 ways, for example, as 37332100 + 53465344 = 6110^2 + 7312^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 90797395 and 90797404.

It is not an unprimeable number, because it can be changed into a prime (90797449) 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 3 ways as a sum of consecutive naturals, for example, 127169 + ... + 127880.

It is an arithmetic number, because the mean of its divisors is an integer number (13390125).

Almost surely, 2^90797444 is an apocalyptic number.

It is an amenable number.

90797444 is a deficient number, since it is larger than the sum of its proper divisors (69884056).

90797444 is a wasteful number, since it uses less digits than its factorization.

90797444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255142 (or 255140 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 90797444 is about 9528.7692804475. The cubic root of 90797444 is about 449.4601658256.

The spelling of 90797444 in words is "ninety million, seven hundred ninety-seven thousand, four hundred forty-four".