7172863 has 2 divisors, whose sum is σ = 7172864. Its totient is φ = 7172862.

The previous prime is 7172843. The next prime is 7172881. The reversal of 7172863 is 3682717.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7172863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7172843) 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 as a sum of consecutive naturals, namely, 3586431 + 3586432.

It is an arithmetic number, because the mean of its divisors is an integer number (3586432).

Almost surely, 2^7172863 is an apocalyptic number.

7172863 is a deficient number, since it is larger than the sum of its proper divisors (1).

7172863 is an equidigital number, since it uses as much as digits as its factorization.

7172863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 34.

The square root of 7172863 is about 2678.2201179141. The cubic root of 7172863 is about 192.8549744090.

The spelling of 7172863 in words is "seven million, one hundred seventy-two thousand, eight hundred sixty-three".