774731 has 6 divisors (see below), whose sum is σ = 795060. Its totient is φ = 754908.

The previous prime is 774703. The next prime is 774733. The reversal of 774731 is 137477.

It is not a de Polignac number, because 774731 - 2⁶ = 774667 is a prime.

It is a super-2 number, since 2×774731² = 1200416244722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 774694 and 774703.

It is not an unprimeable number, because it can be changed into a prime (774733) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1640 + ... + 2058.

It is an arithmetic number, because the mean of its divisors is an integer number (132510).

2⁷⁷⁴⁷³¹ is an apocalyptic number.

774731 is a deficient number, since it is larger than the sum of its proper divisors (20329).

774731 is an equidigital number, since it uses as much as digits as its factorization.

774731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 462 counting only the distinct ones).

The product of its digits is 4116, while the sum is 29.

The square root of 774731 is about 880.1880480897. The cubic root of 774731 is about 91.8438988008.

The spelling of 774731 in words is "seven hundred seventy-four thousand, seven hundred thirty-one".