772287 has 8 divisors (see below), whose sum is σ = 1038336. Its totient is φ = 510552.

The previous prime is 772279. The next prime is 772297. The reversal of 772287 is 782277.

It is a happy number.

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

It is not a de Polignac number, because 772287 - 2³ = 772279 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 772287.

It is not an unprimeable number, because it can be changed into a prime (772207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633 + ... + 1394.

It is an arithmetic number, because the mean of its divisors is an integer number (129792).

2⁷⁷²²⁸⁷ is an apocalyptic number.

772287 is a deficient number, since it is larger than the sum of its proper divisors (266049).

772287 is a wasteful number, since it uses less digits than its factorization.

772287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157.

The product of its digits is 10976, while the sum is 33.

The square root of 772287 is about 878.7986117422. The cubic root of 772287 is about 91.7472188175.

The spelling of 772287 in words is "seven hundred seventy-two thousand, two hundred eighty-seven".