771361 has 4 divisors (see below), whose sum is σ = 773424. Its totient is φ = 769300.

The previous prime is 771359. The next prime is 771389. The reversal of 771361 is 163177.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 163177 = 7 ⋅23311.

It is a cyclic number.

It is not a de Polignac number, because 771361 - 2¹ = 771359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (771301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295 + ... + 1276.

It is an arithmetic number, because the mean of its divisors is an integer number (193356).

2⁷⁷¹³⁶¹ is an apocalyptic number.

It is an amenable number.

771361 is a deficient number, since it is larger than the sum of its proper divisors (2063).

771361 is a wasteful number, since it uses less digits than its factorization.

771361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062.

The product of its digits is 882, while the sum is 25.

The square root of 771361 is about 878.2715980834. The cubic root of 771361 is about 91.7105347423.

The spelling of 771361 in words is "seven hundred seventy-one thousand, three hundred sixty-one".