774364621 has 16 divisors (see below), whose sum is σ = 827241984. Its totient is φ = 723167104.

The previous prime is 774364607. The next prime is 774364631. The reversal of 774364621 is 126463477.

It is not a de Polignac number, because 774364621 - 2¹¹ = 774362573 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 (774364631) 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 15 ways as a sum of consecutive naturals, for example, 705345 + ... + 706441.

It is an arithmetic number, because the mean of its divisors is an integer number (51702624).

Almost surely, 2^774364621 is an apocalyptic number.

It is an amenable number.

774364621 is a deficient number, since it is larger than the sum of its proper divisors (52877363).

774364621 is a wasteful number, since it uses less digits than its factorization.

774364621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820.

The product of its digits is 169344, while the sum is 40.

The square root of 774364621 is about 27827.4077305091. The cubic root of 774364621 is about 918.2941851385.

The spelling of 774364621 in words is "seven hundred seventy-four million, three hundred sixty-four thousand, six hundred twenty-one".