236940863 has 2 divisors, whose sum is σ = 236940864. Its totient is φ = 236940862.

The previous prime is 236940857. The next prime is 236940919. The reversal of 236940863 is 368049632.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 236940863 - 2⁶ = 236940799 is a prime.

It is a super-2 number, since 2×236940863² = 112281945118369538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 236940863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (236940853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118470431 + 118470432.

It is an arithmetic number, because the mean of its divisors is an integer number (118470432).

Almost surely, 2^236940863 is an apocalyptic number.

236940863 is a deficient number, since it is larger than the sum of its proper divisors (1).

236940863 is an equidigital number, since it uses as much as digits as its factorization.

236940863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 236940863 is about 15392.8835180417. The cubic root of 236940863 is about 618.7947997628.

The spelling of 236940863 in words is "two hundred thirty-six million, nine hundred forty thousand, eight hundred sixty-three".