7172287 has 2 divisors, whose sum is σ = 7172288. Its totient is φ = 7172286.

The previous prime is 7172267. The next prime is 7172311. The reversal of 7172287 is 7822717.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7172287 - 2¹⁵ = 7139519 is a prime.

It is equal to p₄₈₇₅₈₂ and since 7172287 and 487582 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7172237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3586143 + 3586144.

It is an arithmetic number, because the mean of its divisors is an integer number (3586144).

Almost surely, 2^7172287 is an apocalyptic number.

7172287 is a deficient number, since it is larger than the sum of its proper divisors (1).

7172287 is an equidigital number, since it uses as much as digits as its factorization.

7172287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10976, while the sum is 34.

The square root of 7172287 is about 2678.1125816515. The cubic root of 7172287 is about 192.8498120148.

The spelling of 7172287 in words is "seven million, one hundred seventy-two thousand, two hundred eighty-seven".