263812379 has 2 divisors, whose sum is σ = 263812380. Its totient is φ = 263812378.

The previous prime is 263812349. The next prime is 263812411. The reversal of 263812379 is 973218362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263812379 - 2¹⁶ = 263746843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (263812349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131906189 + 131906190.

It is an arithmetic number, because the mean of its divisors is an integer number (131906190).

Almost surely, 2^263812379 is an apocalyptic number.

263812379 is a deficient number, since it is larger than the sum of its proper divisors (1).

263812379 is an equidigital number, since it uses as much as digits as its factorization.

263812379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 263812379 is about 16242.3021459398. The cubic root of 263812379 is about 641.3548600854.

The spelling of 263812379 in words is "two hundred sixty-three million, eight hundred twelve thousand, three hundred seventy-nine".