393277249 has 2 divisors, whose sum is σ = 393277250. Its totient is φ = 393277248.

The previous prime is 393277243. The next prime is 393277271. The reversal of 393277249 is 942772393.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 277822224 + 115455025 = 16668^2 + 10745^2 .

It is a cyclic number.

It is not a de Polignac number, because 393277249 - 2¹⁷ = 393146177 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 393277199 and 393277208.

It is not a weakly prime, because it can be changed into another prime (393277243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196638624 + 196638625.

It is an arithmetic number, because the mean of its divisors is an integer number (196638625).

Almost surely, 2^393277249 is an apocalyptic number.

It is an amenable number.

393277249 is a deficient number, since it is larger than the sum of its proper divisors (1).

393277249 is an equidigital number, since it uses as much as digits as its factorization.

393277249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 46.

The square root of 393277249 is about 19831.2190497710. The cubic root of 393277249 is about 732.6551517807.

The spelling of 393277249 in words is "three hundred ninety-three million, two hundred seventy-seven thousand, two hundred forty-nine".