774981 has 8 divisors (see below), whose sum is σ = 1148160. Its totient is φ = 516636.

The previous prime is 774959. The next prime is 774997. The reversal of 774981 is 189477.

It is not a de Polignac number, because 774981 - 2⁷ = 774853 is a prime.

It is a super-2 number, since 2×774981² = 1201191100722, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 774981.

It is not an unprimeable number, because it can be changed into a prime (774901) 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 7 ways as a sum of consecutive naturals, for example, 14325 + ... + 14378.

It is an arithmetic number, because the mean of its divisors is an integer number (143520).

2⁷⁷⁴⁹⁸¹ is an apocalyptic number.

It is an amenable number.

774981 is a deficient number, since it is larger than the sum of its proper divisors (373179).

774981 is a wasteful number, since it uses less digits than its factorization.

774981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28712 (or 28706 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 774981 is about 880.3300517420. The cubic root of 774981 is about 91.8537768554.

The spelling of 774981 in words is "seven hundred seventy-four thousand, nine hundred eighty-one".