90104773 has 4 divisors (see below), whose sum is σ = 98296128. Its totient is φ = 81913420.

The previous prime is 90104771. The next prime is 90104779. The reversal of 90104773 is 37740109.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90104773 - 2¹ = 90104771 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90104771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4095661 + ... + 4095682.

It is an arithmetic number, because the mean of its divisors is an integer number (24574032).

Almost surely, 2^90104773 is an apocalyptic number.

It is an amenable number.

90104773 is a deficient number, since it is larger than the sum of its proper divisors (8191355).

90104773 is a wasteful number, since it uses less digits than its factorization.

90104773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8191354.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 90104773 is about 9492.3533962869. The cubic root of 90104773 is about 448.3143072990.

The spelling of 90104773 in words is "ninety million, one hundred four thousand, seven hundred seventy-three".