1024712989 has 4 divisors (see below), whose sum is σ = 1026926656. Its totient is φ = 1022499324.

The previous prime is 1024712987. The next prime is 1024712993. The reversal of 1024712989 is 9892174201.

It is a happy number.

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 1024712989 - 2¹ = 1024712987 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 (1024712987) 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, 1106139 + ... + 1107064.

It is an arithmetic number, because the mean of its divisors is an integer number (256731664).

Almost surely, 2^1024712989 is an apocalyptic number.

It is an amenable number.

1024712989 is a deficient number, since it is larger than the sum of its proper divisors (2213667).

1024712989 is an equidigital number, since it uses as much as digits as its factorization.

1024712989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213666.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 1024712989 is about 32011.1385145858. The cubic root of 1024712989 is about 1008.1707204989.

The spelling of 1024712989 in words is "one billion, twenty-four million, seven hundred twelve thousand, nine hundred eighty-nine".