263473447 has 2 divisors, whose sum is σ = 263473448. Its totient is φ = 263473446.

The previous prime is 263473423. The next prime is 263473451. The reversal of 263473447 is 744374362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 263473447 - 2⁷ = 263473319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263473477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131736723 + 131736724.

It is an arithmetic number, because the mean of its divisors is an integer number (131736724).

Almost surely, 2^263473447 is an apocalyptic number.

263473447 is a deficient number, since it is larger than the sum of its proper divisors (1).

263473447 is an equidigital number, since it uses as much as digits as its factorization.

263473447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 40.

The square root of 263473447 is about 16231.8651731710. The cubic root of 263473447 is about 641.0800829330.

The spelling of 263473447 in words is "two hundred sixty-three million, four hundred seventy-three thousand, four hundred forty-seven".