1004792891 has 2 divisors, whose sum is σ = 1004792892. Its totient is φ = 1004792890.

The previous prime is 1004792879. The next prime is 1004792917. The reversal of 1004792891 is 1982974001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1004792891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1004792851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502396445 + 502396446.

It is an arithmetic number, because the mean of its divisors is an integer number (502396446).

Almost surely, 2^1004792891 is an apocalyptic number.

1004792891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004792891 is an equidigital number, since it uses as much as digits as its factorization.

1004792891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 1004792891 is about 31698.4682752968. The cubic root of 1004792891 is about 1001.5950846854.

The spelling of 1004792891 in words is "one billion, four million, seven hundred ninety-two thousand, eight hundred ninety-one".