774491 has 2 divisors, whose sum is σ = 774492. Its totient is φ = 774490.

The previous prime is 774467. The next prime is 774511. The reversal of 774491 is 194477.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 774491 - 2⁶ = 774427 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (774691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387245 + 387246.

It is an arithmetic number, because the mean of its divisors is an integer number (387246).

2⁷⁷⁴⁴⁹¹ is an apocalyptic number.

774491 is a deficient number, since it is larger than the sum of its proper divisors (1).

774491 is an equidigital number, since it uses as much as digits as its factorization.

774491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 32.

The square root of 774491 is about 880.0517030266. The cubic root of 774491 is about 91.8344138690.

The spelling of 774491 in words is "seven hundred seventy-four thousand, four hundred ninety-one".