235643923 has 2 divisors, whose sum is σ = 235643924. Its totient is φ = 235643922.

The previous prime is 235643921. The next prime is 235643951. The reversal of 235643923 is 329346532.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 235643923 - 2¹ = 235643921 is a prime.

Together with 235643921, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (235643921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117821961 + 117821962.

It is an arithmetic number, because the mean of its divisors is an integer number (117821962).

Almost surely, 2^235643923 is an apocalyptic number.

235643923 is a deficient number, since it is larger than the sum of its proper divisors (1).

235643923 is an equidigital number, since it uses as much as digits as its factorization.

235643923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 37.

The square root of 235643923 is about 15350.6978017288. The cubic root of 235643923 is about 617.6637039130.

The spelling of 235643923 in words is "two hundred thirty-five million, six hundred forty-three thousand, nine hundred twenty-three".