1172863 has 4 divisors (see below), whose sum is σ = 1204600. Its totient is φ = 1141128.

The previous prime is 1172833. The next prime is 1172867. The reversal of 1172863 is 3682711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3682711 = 347 ⋅10613.

It is a cyclic number.

It is not a de Polignac number, because 1172863 - 2⁹ = 1172351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172867) 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, 15813 + ... + 15886.

It is an arithmetic number, because the mean of its divisors is an integer number (301150).

2^1172863 is an apocalyptic number.

1172863 is a deficient number, since it is larger than the sum of its proper divisors (31737).

1172863 is an equidigital number, since it uses as much as digits as its factorization.

1172863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31736.

The product of its digits is 2016, while the sum is 28.

The square root of 1172863 is about 1082.9879962400. The cubic root of 1172863 is about 105.4587036924.

It can be divided in two parts, 117 and 2863, that multiplied together give a triangular number (334971 = T₈₁₈).

The spelling of 1172863 in words is "one million, one hundred seventy-two thousand, eight hundred sixty-three".