774334397 has 2 divisors, whose sum is σ = 774334398. Its totient is φ = 774334396.

The previous prime is 774334381. The next prime is 774334439. The reversal of 774334397 is 793433477.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 557479321 + 216855076 = 23611^2 + 14726^2 .

It is a cyclic number.

It is not a de Polignac number, because 774334397 - 2⁴ = 774334381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (774334357) 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 as a sum of consecutive naturals, namely, 387167198 + 387167199.

It is an arithmetic number, because the mean of its divisors is an integer number (387167199).

Almost surely, 2^774334397 is an apocalyptic number.

It is an amenable number.

774334397 is a deficient number, since it is larger than the sum of its proper divisors (1).

774334397 is an equidigital number, since it uses as much as digits as its factorization.

774334397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1333584, while the sum is 47.

The square root of 774334397 is about 27826.8646634866. The cubic root of 774334397 is about 918.2822377587.

The spelling of 774334397 in words is "seven hundred seventy-four million, three hundred thirty-four thousand, three hundred ninety-seven".