1023347664 has 30 divisors (see below), whose sum is σ = 2863952546. Its totient is φ = 341115840.

The previous prime is 1023347627. The next prime is 1023347681. The reversal of 1023347664 is 4667433201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1022720400 + 627264 = 31980^2 + 792^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3553147 + ... + 3553434.

Almost surely, 2^1023347664 is an apocalyptic number.

It is an amenable number.

1023347664 is an abundant number, since it is smaller than the sum of its proper divisors (1840604882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023347664 is a wasteful number, since it uses less digits than its factorization.

1023347664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7106595 (or 7106586 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 1023347664 is about 31989.8056261678. The cubic root of 1023347664 is about 1007.7227601118.

The spelling of 1023347664 in words is "one billion, twenty-three million, three hundred forty-seven thousand, six hundred sixty-four".