772279 has 2 divisors, whose sum is σ = 772280. Its totient is φ = 772278.

The previous prime is 772273. The next prime is 772297. The reversal of 772279 is 972277.

It is a happy number.

Together with next prime (772297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (972277) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 772279 - 2¹⁵ = 739511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (772273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386139 + 386140.

It is an arithmetic number, because the mean of its divisors is an integer number (386140).

2⁷⁷²²⁷⁹ is an apocalyptic number.

772279 is a deficient number, since it is larger than the sum of its proper divisors (1).

772279 is an equidigital number, since it uses as much as digits as its factorization.

772279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12348, while the sum is 34.

The square root of 772279 is about 878.7940600619. The cubic root of 772279 is about 91.7469020181.

The spelling of 772279 in words is "seven hundred seventy-two thousand, two hundred seventy-nine".