11958263 has 2 divisors, whose sum is σ = 11958264. Its totient is φ = 11958262.

The previous prime is 11958251. The next prime is 11958269. The reversal of 11958263 is 36285911.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11958263 is a prime.

It is equal to p₇₈₅₅₁₉ and since 11958263 and 785519 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11958269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5979131 + 5979132.

It is an arithmetic number, because the mean of its divisors is an integer number (5979132).

Almost surely, 2^11958263 is an apocalyptic number.

11958263 is a deficient number, since it is larger than the sum of its proper divisors (1).

11958263 is an equidigital number, since it uses as much as digits as its factorization.

11958263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 35.

The square root of 11958263 is about 3458.0721507800. The cubic root of 11958263 is about 228.6771127532.

It can be divided in two parts, 11958 and 263, that added together give a palindrome (12221).

The spelling of 11958263 in words is "eleven million, nine hundred fifty-eight thousand, two hundred sixty-three".