774398 has 4 divisors (see below), whose sum is σ = 1161600. Its totient is φ = 387198.

The previous prime is 774377. The next prime is 774427. The reversal of 774398 is 893477.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 893477 = 13 ⋅68729.

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 774398.

It is an unprimeable number.

774398 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 (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193598 + ... + 193601.

It is an arithmetic number, because the mean of its divisors is an integer number (290400).

2⁷⁷⁴³⁹⁸ is an apocalyptic number.

774398 is a deficient number, since it is larger than the sum of its proper divisors (387202).

774398 is a wasteful number, since it uses less digits than its factorization.

774398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387201.

The product of its digits is 42336, while the sum is 38.

The square root of 774398 is about 879.9988636356. The cubic root of 774398 is about 91.8307379311.

The spelling of 774398 in words is "seven hundred seventy-four thousand, three hundred ninety-eight".