1004690866 has 4 divisors (see below), whose sum is σ = 1507036302. Its totient is φ = 502345432.

The previous prime is 1004690851. The next prime is 1004690879. The reversal of 1004690866 is 6680964001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 833996641 + 170694225 = 28879^2 + 13065^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251172715 + ... + 251172718.

Almost surely, 2^1004690866 is an apocalyptic number.

1004690866 is a deficient number, since it is larger than the sum of its proper divisors (502345436).

1004690866 is an equidigital number, since it uses as much as digits as its factorization.

1004690866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502345435.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 1004690866 is about 31696.8589295533. The cubic root of 1004690866 is about 1001.5611834379.

The spelling of 1004690866 in words is "one billion, four million, six hundred ninety thousand, eight hundred sixty-six".