772285 has 8 divisors (see below), whose sum is σ = 931896. Its totient is φ = 614400.

The previous prime is 772279. The next prime is 772297. The reversal of 772285 is 582277.

772285 = T₃₈₈ + T₃₈₉ + ... + T₃₉₇.

It can be written as a sum of positive squares in 4 ways, for example, as 427716 + 344569 = 654^2 + 587^2 .

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

It is not a de Polignac number, because 772285 - 2¹⁷ = 641213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985 + ... + 1585.

It is an arithmetic number, because the mean of its divisors is an integer number (116487).

2⁷⁷²²⁸⁵ is an apocalyptic number.

It is an amenable number.

772285 is a deficient number, since it is larger than the sum of its proper divisors (159611).

772285 is a wasteful number, since it uses less digits than its factorization.

772285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863.

The product of its digits is 7840, while the sum is 31.

The square root of 772285 is about 878.7974738243. The cubic root of 772285 is about 91.7471396179.

The spelling of 772285 in words is "seven hundred seventy-two thousand, two hundred eighty-five".