1047664589 has 4 divisors (see below), whose sum is σ = 1050773724. Its totient is φ = 1044555456.

The previous prime is 1047664573. The next prime is 1047664609. The reversal of 1047664589 is 9854667401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9854667401 = 2089 ⋅4717409.

It can be written as a sum of positive squares in 2 ways, for example, as 232105225 + 815559364 = 15235^2 + 28558^2 .

It is a cyclic number.

It is not a de Polignac number, because 1047664589 - 2⁴ = 1047664573 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047664889) 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, 1554062 + ... + 1554735.

It is an arithmetic number, because the mean of its divisors is an integer number (262693431).

Almost surely, 2^1047664589 is an apocalyptic number.

It is an amenable number.

1047664589 is a deficient number, since it is larger than the sum of its proper divisors (3109135).

1047664589 is an equidigital number, since it uses as much as digits as its factorization.

1047664589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109134.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 1047664589 is about 32367.6472577171. The cubic root of 1047664589 is about 1015.6422408548.

The spelling of 1047664589 in words is "one billion, forty-seven million, six hundred sixty-four thousand, five hundred eighty-nine".