774730493 has 4 divisors (see below), whose sum is σ = 783435420. Its totient is φ = 766025568.

The previous prime is 774730483. The next prime is 774730501. The reversal of 774730493 is 394037477.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 518154169 + 256576324 = 22763^2 + 16018^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-774730493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774730403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4352330 + ... + 4352507.

It is an arithmetic number, because the mean of its divisors is an integer number (195858855).

Almost surely, 2^774730493 is an apocalyptic number.

It is an amenable number.

774730493 is a deficient number, since it is larger than the sum of its proper divisors (8704927).

774730493 is an equidigital number, since it uses as much as digits as its factorization.

774730493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8704926.

The product of its (nonzero) digits is 444528, while the sum is 44.

The square root of 774730493 is about 27833.9809046424. The cubic root of 774730493 is about 918.4387876597.

The spelling of 774730493 in words is "seven hundred seventy-four million, seven hundred thirty thousand, four hundred ninety-three".