8990473 has 4 divisors (see below), whose sum is σ = 9006228. Its totient is φ = 8974720.

The previous prime is 8990459. The next prime is 8990497. The reversal of 8990473 is 3740998.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3740998 = 2 ⋅1870499.

It can be written as a sum of positive squares in 2 ways, for example, as 5257849 + 3732624 = 2293^2 + 1932^2 .

It is a cyclic number.

It is not a de Polignac number, because 8990473 - 2⁵ = 8990441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8990413) 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, 6988 + ... + 8173.

It is an arithmetic number, because the mean of its divisors is an integer number (2251557).

Almost surely, 2^8990473 is an apocalyptic number.

It is an amenable number.

8990473 is a deficient number, since it is larger than the sum of its proper divisors (15755).

8990473 is a wasteful number, since it uses less digits than its factorization.

8990473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15754.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 8990473 is about 2998.4117462417. The cubic root of 8990473 is about 207.9349602491.

The spelling of 8990473 in words is "eight million, nine hundred ninety thousand, four hundred seventy-three".