772290 has 24 divisors (see below), whose sum is σ = 2008188. Its totient is φ = 205920.

The previous prime is 772279. The next prime is 772297. The reversal of 772290 is 92277.

It can be written as a sum of positive squares in 2 ways, for example, as 622521 + 149769 = 789^2 + 387^2 .

It is not an unprimeable number, because it can be changed into a prime (772297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4201 + ... + 4380.

2⁷⁷²²⁹⁰ is an apocalyptic number.

772290 is an abundant number, since it is smaller than the sum of its proper divisors (1235898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

772290 is a wasteful number, since it uses less digits than its factorization.

772290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8594 (or 8591 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 772290 is about 878.8003186162. The cubic root of 772290 is about 91.7473376167.

The spelling of 772290 in words is "seven hundred seventy-two thousand, two hundred ninety".