1170394643 has 6 divisors (see below), whose sum is σ = 1286466972. Its totient is φ = 1063995020.

The previous prime is 1170394639. The next prime is 1170394663. The reversal of 1170394643 is 3464930711.

It is not a de Polignac number, because 1170394643 - 2² = 1170394639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1170394597 and 1170394606.

It is not an unprimeable number, because it can be changed into a prime (1170394613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4836221 + ... + 4836462.

It is an arithmetic number, because the mean of its divisors is an integer number (214411162).

Almost surely, 2^1170394643 is an apocalyptic number.

1170394643 is a deficient number, since it is larger than the sum of its proper divisors (116072329).

1170394643 is an equidigital number, since it uses as much as digits as its factorization.

1170394643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9672705 (or 9672694 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 1170394643 is about 34211.0310134027. The cubic root of 1170394643 is about 1053.8467044908.

The spelling of 1170394643 in words is "one billion, one hundred seventy million, three hundred ninety-four thousand, six hundred forty-three".