1037664321 has 4 divisors (see below), whose sum is σ = 1383552432. Its totient is φ = 691776212.

The previous prime is 1037664319. The next prime is 1037664337. The reversal of 1037664321 is 1234667301.

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 1037664321 - 2¹ = 1037664319 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1037664311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172944051 + ... + 172944056.

It is an arithmetic number, because the mean of its divisors is an integer number (345888108).

Almost surely, 2^1037664321 is an apocalyptic number.

It is an amenable number.

1037664321 is a deficient number, since it is larger than the sum of its proper divisors (345888111).

1037664321 is an equidigital number, since it uses as much as digits as its factorization.

1037664321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345888110.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 1037664321 is about 32212.7974724332. The cubic root of 1037664321 is about 1012.4003689193.

The spelling of 1037664321 in words is "one billion, thirty-seven million, six hundred sixty-four thousand, three hundred twenty-one".