1036797891 has 4 divisors (see below), whose sum is σ = 1382397192. Its totient is φ = 691198592.

The previous prime is 1036797859. The next prime is 1036797899. The reversal of 1036797891 is 1987976301.

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

It is a cyclic number.

It is not a de Polignac number, because 1036797891 - 2⁵ = 1036797859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1036797899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172799646 + ... + 172799651.

It is an arithmetic number, because the mean of its divisors is an integer number (345599298).

Almost surely, 2^1036797891 is an apocalyptic number.

1036797891 is a deficient number, since it is larger than the sum of its proper divisors (345599301).

1036797891 is an equidigital number, since it uses as much as digits as its factorization.

1036797891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345599300.

The product of its (nonzero) digits is 571536, while the sum is 51.

The square root of 1036797891 is about 32199.3461269014. The cubic root of 1036797891 is about 1012.1185120964.

The spelling of 1036797891 in words is "one billion, thirty-six million, seven hundred ninety-seven thousand, eight hundred ninety-one".