235676789 has 2 divisors, whose sum is σ = 235676790. Its totient is φ = 235676788.

The previous prime is 235676783. The next prime is 235676827. The reversal of 235676789 is 987676532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 235622500 + 54289 = 15350^2 + 233^2 .

It is a cyclic number.

It is not a de Polignac number, because 235676789 - 2²⁰ = 234628213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 235676789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235676783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117838394 + 117838395.

It is an arithmetic number, because the mean of its divisors is an integer number (117838395).

Almost surely, 2^235676789 is an apocalyptic number.

It is an amenable number.

235676789 is a deficient number, since it is larger than the sum of its proper divisors (1).

235676789 is an equidigital number, since it uses as much as digits as its factorization.

235676789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 53.

The square root of 235676789 is about 15351.7682694861. The cubic root of 235676789 is about 617.6924184120.

The spelling of 235676789 in words is "two hundred thirty-five million, six hundred seventy-six thousand, seven hundred eighty-nine".