235456993 has 2 divisors, whose sum is σ = 235456994. Its totient is φ = 235456992.

The previous prime is 235456951. The next prime is 235457009. The reversal of 235456993 is 399654532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232471009 + 2985984 = 15247^2 + 1728^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235456993 is a prime.

It is not a weakly prime, because it can be changed into another prime (235456933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117728496 + 117728497.

It is an arithmetic number, because the mean of its divisors is an integer number (117728497).

Almost surely, 2^235456993 is an apocalyptic number.

It is an amenable number.

235456993 is a deficient number, since it is larger than the sum of its proper divisors (1).

235456993 is an equidigital number, since it uses as much as digits as its factorization.

235456993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 46.

The square root of 235456993 is about 15344.6079454641. The cubic root of 235456993 is about 617.5003353602.

The spelling of 235456993 in words is "two hundred thirty-five million, four hundred fifty-six thousand, nine hundred ninety-three".