774202213 has 2 divisors, whose sum is σ = 774202214. Its totient is φ = 774202212.

The previous prime is 774202129. The next prime is 774202243. The reversal of 774202213 is 312202477.

774202213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 578258209 + 195944004 = 24047^2 + 13998^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-774202213 is a prime.

It is a super-2 number, since 2×774202213² = 1198778133228194738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (774202243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387101106 + 387101107.

It is an arithmetic number, because the mean of its divisors is an integer number (387101107).

Almost surely, 2^774202213 is an apocalyptic number.

It is an amenable number.

774202213 is a deficient number, since it is larger than the sum of its proper divisors (1).

774202213 is an equidigital number, since it uses as much as digits as its factorization.

774202213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 774202213 is about 27824.4894472477. The cubic root of 774202213 is about 918.2299825025.

The spelling of 774202213 in words is "seven hundred seventy-four million, two hundred two thousand, two hundred thirteen".