263970923 has 2 divisors, whose sum is σ = 263970924. Its totient is φ = 263970922.

The previous prime is 263970911. The next prime is 263970991. The reversal of 263970923 is 329079362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263970923 - 2⁴ = 263970907 is a prime.

It is not a weakly prime, because it can be changed into another prime (263970323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131985461 + 131985462.

It is an arithmetic number, because the mean of its divisors is an integer number (131985462).

Almost surely, 2^263970923 is an apocalyptic number.

263970923 is a deficient number, since it is larger than the sum of its proper divisors (1).

263970923 is an equidigital number, since it uses as much as digits as its factorization.

263970923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 263970923 is about 16247.1820018119. The cubic root of 263970923 is about 641.4833132466.

The spelling of 263970923 in words is "two hundred sixty-three million, nine hundred seventy thousand, nine hundred twenty-three".