774742 has 4 divisors (see below), whose sum is σ = 1162116. Its totient is φ = 387370.

The previous prime is 774733. The next prime is 774757. The reversal of 774742 is 247477.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 247477 = 61 ⋅4057.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

774742 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, 193684 + ... + 193687.

It is an arithmetic number, because the mean of its divisors is an integer number (290529).

2⁷⁷⁴⁷⁴² is an apocalyptic number.

774742 is a deficient number, since it is larger than the sum of its proper divisors (387374).

774742 is a wasteful number, since it uses less digits than its factorization.

774742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387373.

The product of its digits is 10976, while the sum is 31.

The square root of 774742 is about 880.1942967323. The cubic root of 774742 is about 91.8443334799.

The spelling of 774742 in words is "seven hundred seventy-four thousand, seven hundred forty-two", and thus it is an iban number.