90764473 has 4 divisors (see below), whose sum is σ = 92695680. Its totient is φ = 88833268.

The previous prime is 90764467. The next prime is 90764491. The reversal of 90764473 is 37446709.

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 90764473 - 2²¹ = 88667321 is a prime.

It is a Smith number, since the sum of its digits (40) 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 not an unprimeable number, because it can be changed into a prime (90764413) 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, 965533 + ... + 965626.

It is an arithmetic number, because the mean of its divisors is an integer number (23173920).

Almost surely, 2^90764473 is an apocalyptic number.

It is an amenable number.

90764473 is a deficient number, since it is larger than the sum of its proper divisors (1931207).

90764473 is a wasteful number, since it uses less digits than its factorization.

90764473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931206.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 90764473 is about 9527.0390468393. The cubic root of 90764473 is about 449.4057555376.

The spelling of 90764473 in words is "ninety million, seven hundred sixty-four thousand, four hundred seventy-three".