1073492891 has 2 divisors, whose sum is σ = 1073492892. Its totient is φ = 1073492890.

The previous prime is 1073492857. The next prime is 1073492923. The reversal of 1073492891 is 1982943701.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1073492891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1073492821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536746445 + 536746446.

It is an arithmetic number, because the mean of its divisors is an integer number (536746446).

Almost surely, 2^1073492891 is an apocalyptic number.

1073492891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073492891 is an equidigital number, since it uses as much as digits as its factorization.

1073492891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 1073492891 is about 32764.2013636835. The cubic root of 1073492891 is about 1023.9208602143.

The spelling of 1073492891 in words is "one billion, seventy-three million, four hundred ninety-two thousand, eight hundred ninety-one".