774120331 has 4 divisors (see below), whose sum is σ = 774432112. Its totient is φ = 773808552.

The previous prime is 774120311. The next prime is 774120349. The reversal of 774120331 is 133021477.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133021477 = 5443 ⋅24439.

It is a cyclic number.

It is not a de Polignac number, because 774120331 - 2⁵ = 774120299 is a prime.

It is a super-2 number, since 2×774120331² = 1198524573735099122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 774120331.

It is not an unprimeable number, because it can be changed into a prime (774120311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152136 + ... + 157141.

It is an arithmetic number, because the mean of its divisors is an integer number (193608028).

Almost surely, 2^774120331 is an apocalyptic number.

774120331 is a deficient number, since it is larger than the sum of its proper divisors (311781).

774120331 is a wasteful number, since it uses less digits than its factorization.

774120331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311780.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 774120331 is about 27823.0180066793. The cubic root of 774120331 is about 918.1976097550.

The spelling of 774120331 in words is "seven hundred seventy-four million, one hundred twenty thousand, three hundred thirty-one".