1173226889 has 4 divisors (see below), whose sum is σ = 1182465024. Its totient is φ = 1163988756.

The previous prime is 1173226843. The next prime is 1173226891. The reversal of 1173226889 is 9886223711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1173226889 - 2⁸ = 1173226633 is a prime.

It is a super-2 number, since 2×1173226889² = 2752922666145236642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1173226189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4618877 + ... + 4619130.

It is an arithmetic number, because the mean of its divisors is an integer number (295616256).

Almost surely, 2^1173226889 is an apocalyptic number.

It is an amenable number.

1173226889 is a deficient number, since it is larger than the sum of its proper divisors (9238135).

1173226889 is an equidigital number, since it uses as much as digits as its factorization.

1173226889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9238134.

The product of its digits is 290304, while the sum is 47.

The square root of 1173226889 is about 34252.3997553456. The cubic root of 1173226889 is about 1054.6960899964.

The spelling of 1173226889 in words is "one billion, one hundred seventy-three million, two hundred twenty-six thousand, eight hundred eighty-nine".