771325 has 6 divisors (see below), whose sum is σ = 956474. Its totient is φ = 617040.

The previous prime is 771301. The next prime is 771349. The reversal of 771325 is 523177.

It is an interprime number because it is at equal distance from previous prime (771301) and next prime (771349).

It can be written as a sum of positive squares in 3 ways, for example, as 441 + 770884 = 21^2 + 878^2 .

It is not a de Polignac number, because 771325 - 2⁵ = 771293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 30853 = 771325 / (7 + 7 + 1 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 771325.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 15402 + ... + 15451.

2⁷⁷¹³²⁵ is an apocalyptic number.

It is an amenable number.

771325 is a deficient number, since it is larger than the sum of its proper divisors (185149).

771325 is a wasteful number, since it uses less digits than its factorization.

771325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30863 (or 30858 counting only the distinct ones).

The product of its digits is 1470, while the sum is 25.

The square root of 771325 is about 878.2511030451. The cubic root of 771325 is about 91.7091079868.

The spelling of 771325 in words is "seven hundred seventy-one thousand, three hundred twenty-five".