235778623 has 2 divisors, whose sum is σ = 235778624. Its totient is φ = 235778622.

The previous prime is 235778563. The next prime is 235778651. The reversal of 235778623 is 326877532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 235778623 - 2¹⁷ = 235647551 is a prime.

It is a super-2 number, since 2×235778623² = 111183118127552258, 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 235778623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235778723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117889311 + 117889312.

It is an arithmetic number, because the mean of its divisors is an integer number (117889312).

Almost surely, 2^235778623 is an apocalyptic number.

235778623 is a deficient number, since it is larger than the sum of its proper divisors (1).

235778623 is an equidigital number, since it uses as much as digits as its factorization.

235778623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 43.

The square root of 235778623 is about 15355.0845976178. The cubic root of 235778623 is about 617.7813722038.

The spelling of 235778623 in words is "two hundred thirty-five million, seven hundred seventy-eight thousand, six hundred twenty-three".