772505 has 4 divisors (see below), whose sum is σ = 927012. Its totient is φ = 618000.

The previous prime is 772493. The next prime is 772517. The reversal of 772505 is 505277.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (772493) and next prime (772517).

It can be written as a sum of positive squares in 2 ways, for example, as 534361 + 238144 = 731^2 + 488^2 .

It is not a de Polignac number, because 772505 - 2⁶ = 772441 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 772505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77246 + ... + 77255.

It is an arithmetic number, because the mean of its divisors is an integer number (231753).

2⁷⁷²⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

772505 is a deficient number, since it is larger than the sum of its proper divisors (154507).

772505 is a wasteful number, since it uses less digits than its factorization.

772505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154506.

The product of its (nonzero) digits is 2450, while the sum is 26.

The square root of 772505 is about 878.9226359584. The cubic root of 772505 is about 91.7558507605.

The spelling of 772505 in words is "seven hundred seventy-two thousand, five hundred five".