1004688321 has 32 divisors (see below), whose sum is σ = 1745710848. Its totient is φ = 498769920.

The previous prime is 1004688319. The next prime is 1004688329. The reversal of 1004688321 is 1238864001.

It is not a de Polignac number, because 1004688321 - 2¹ = 1004688319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1004688329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103600 + ... + 112881.

It is an arithmetic number, because the mean of its divisors is an integer number (54553464).

Almost surely, 2^1004688321 is an apocalyptic number.

It is an amenable number.

1004688321 is a deficient number, since it is larger than the sum of its proper divisors (741022527).

1004688321 is a wasteful number, since it uses less digits than its factorization.

1004688321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216521.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 1004688321 is about 31696.8187835940. The cubic root of 1004688321 is about 1001.5603377465.

The spelling of 1004688321 in words is "one billion, four million, six hundred eighty-eight thousand, three hundred twenty-one".