263490079 has 2 divisors, whose sum is σ = 263490080. Its totient is φ = 263490078.

The previous prime is 263490077. The next prime is 263490127. The reversal of 263490079 is 970094362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263490079 - 2¹ = 263490077 is a prime.

Together with 263490077, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263490077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131745039 + 131745040.

It is an arithmetic number, because the mean of its divisors is an integer number (131745040).

Almost surely, 2^263490079 is an apocalyptic number.

263490079 is a deficient number, since it is larger than the sum of its proper divisors (1).

263490079 is an equidigital number, since it uses as much as digits as its factorization.

263490079 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 263490079 is about 16232.3774906820. The cubic root of 263490079 is about 641.0935722361.

The spelling of 263490079 in words is "two hundred sixty-three million, four hundred ninety thousand, seventy-nine".