263574427 has 2 divisors, whose sum is σ = 263574428. Its totient is φ = 263574426.

The previous prime is 263574419. The next prime is 263574469. The reversal of 263574427 is 724475362.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263574427 - 2³ = 263574419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 263574427.

It is not a weakly prime, because it can be changed into another prime (263574497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131787213 + 131787214.

It is an arithmetic number, because the mean of its divisors is an integer number (131787214).

Almost surely, 2^263574427 is an apocalyptic number.

263574427 is a deficient number, since it is larger than the sum of its proper divisors (1).

263574427 is an equidigital number, since it uses as much as digits as its factorization.

263574427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 40.

The square root of 263574427 is about 16234.9754234492. The cubic root of 263574427 is about 641.1619735357.

The spelling of 263574427 in words is "two hundred sixty-three million, five hundred seventy-four thousand, four hundred twenty-seven".