774400093 has 2 divisors, whose sum is σ = 774400094. Its totient is φ = 774400092.

The previous prime is 774400069. The next prime is 774400111. The reversal of 774400093 is 390004477.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 769119289 + 5280804 = 27733^2 + 2298^2 .

It is a cyclic number.

It is not a de Polignac number, because 774400093 - 2²¹ = 772302941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (774400493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387200046 + 387200047.

It is an arithmetic number, because the mean of its divisors is an integer number (387200047).

Almost surely, 2^774400093 is an apocalyptic number.

It is an amenable number.

774400093 is a deficient number, since it is larger than the sum of its proper divisors (1).

774400093 is an equidigital number, since it uses as much as digits as its factorization.

774400093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 774400093 is about 27828.0450804580. The cubic root of 774400093 is about 918.3082066270.

The spelling of 774400093 in words is "seven hundred seventy-four million, four hundred thousand, ninety-three".