774986 has 4 divisors (see below), whose sum is σ = 1162482. Its totient is φ = 387492.

The previous prime is 774959. The next prime is 774997. The reversal of 774986 is 689477.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 689477 = 53 ⋅13009.

It can be written as a sum of positive squares in only one way, i.e., 555025 + 219961 = 745^2 + 469^2 .

It is an unprimeable number.

774986 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 193745 + ... + 193748.

2⁷⁷⁴⁹⁸⁶ is an apocalyptic number.

774986 is a deficient number, since it is larger than the sum of its proper divisors (387496).

774986 is a wasteful number, since it uses less digits than its factorization.

774986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387495.

The product of its digits is 84672, while the sum is 41.

The square root of 774986 is about 880.3328915814. The cubic root of 774986 is about 91.8539743948.

The spelling of 774986 in words is "seven hundred seventy-four thousand, nine hundred eighty-six".