774636 has 12 divisors (see below), whose sum is σ = 1807512. Its totient is φ = 258208.

The previous prime is 774629. The next prime is 774643. The reversal of 774636 is 636477.

It is an interprime number because it is at equal distance from previous prime (774629) and next prime (774643).

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 774597 and 774606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32265 + ... + 32288.

It is an arithmetic number, because the mean of its divisors is an integer number (150626).

2⁷⁷⁴⁶³⁶ is an apocalyptic number.

It is an amenable number.

774636 is an abundant number, since it is smaller than the sum of its proper divisors (1032876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

774636 is a wasteful number, since it uses less digits than its factorization.

774636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64560 (or 64558 counting only the distinct ones).

The product of its digits is 21168, while the sum is 33.

The square root of 774636 is about 880.1340806945. The cubic root of 774636 is about 91.8401445829.

The spelling of 774636 in words is "seven hundred seventy-four thousand, six hundred thirty-six".