263900479 has 2 divisors, whose sum is σ = 263900480. Its totient is φ = 263900478.

The previous prime is 263900453. The next prime is 263900491. The reversal of 263900479 is 974009362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 263900479 - 2⁹ = 263899967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263900419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131950239 + 131950240.

It is an arithmetic number, because the mean of its divisors is an integer number (131950240).

Almost surely, 2^263900479 is an apocalyptic number.

263900479 is a deficient number, since it is larger than the sum of its proper divisors (1).

263900479 is an equidigital number, since it uses as much as digits as its factorization.

263900479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 263900479 is about 16245.0139735243. The cubic root of 263900479 is about 641.4262455081.

The spelling of 263900479 in words is "two hundred sixty-three million, nine hundred thousand, four hundred seventy-nine".