774070321 has 2 divisors, whose sum is σ = 774070322. Its totient is φ = 774070320.

The previous prime is 774070273. The next prime is 774070331. The reversal of 774070321 is 123070477.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 757350400 + 16719921 = 27520^2 + 4089^2 .

It is a cyclic number.

It is not a de Polignac number, because 774070321 - 2¹⁵ = 774037553 is a prime.

It is not a weakly prime, because it can be changed into another prime (774070331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387035160 + 387035161.

It is an arithmetic number, because the mean of its divisors is an integer number (387035161).

Almost surely, 2^774070321 is an apocalyptic number.

It is an amenable number.

774070321 is a deficient number, since it is larger than the sum of its proper divisors (1).

774070321 is an equidigital number, since it uses as much as digits as its factorization.

774070321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 774070321 is about 27822.1192758568. The cubic root of 774070321 is about 918.1778367519.

The spelling of 774070321 in words is "seven hundred seventy-four million, seventy thousand, three hundred twenty-one".