1173365997 has 8 divisors (see below), whose sum is σ = 1566781344. Its totient is φ = 781097328.

The previous prime is 1173365989. The next prime is 1173366023. The reversal of 1173365997 is 7995633711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1173365997 - 2³ = 1173365989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1173360997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284278 + ... + 288375.

It is an arithmetic number, because the mean of its divisors is an integer number (195847668).

Almost surely, 2^1173365997 is an apocalyptic number.

It is an amenable number.

1173365997 is a deficient number, since it is larger than the sum of its proper divisors (393415347).

1173365997 is an equidigital number, since it uses as much as digits as its factorization.

1173365997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573339.

The product of its digits is 1071630, while the sum is 51.

The square root of 1173365997 is about 34254.4303266016. The cubic root of 1173365997 is about 1054.7377730009.

The spelling of 1173365997 in words is "one billion, one hundred seventy-three million, three hundred sixty-five thousand, nine hundred ninety-seven".