774470321 has 2 divisors, whose sum is σ = 774470322. Its totient is φ = 774470320.

The previous prime is 774470269. The next prime is 774470363. The reversal of 774470321 is 123074477.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 503374096 + 271096225 = 22436^2 + 16465^2 .

It is a cyclic number.

It is not a de Polignac number, because 774470321 - 2¹⁴ = 774453937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (774476321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387235160 + 387235161.

It is an arithmetic number, because the mean of its divisors is an integer number (387235161).

Almost surely, 2^774470321 is an apocalyptic number.

It is an amenable number.

774470321 is a deficient number, since it is larger than the sum of its proper divisors (1).

774470321 is an equidigital number, since it uses as much as digits as its factorization.

774470321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 774470321 is about 27829.3068724322. The cubic root of 774470321 is about 918.3359653183.

The spelling of 774470321 in words is "seven hundred seventy-four million, four hundred seventy thousand, three hundred twenty-one".