234243397 has 2 divisors, whose sum is σ = 234243398. Its totient is φ = 234243396.

The previous prime is 234243389. The next prime is 234243407. The reversal of 234243397 is 793342432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192265956 + 41977441 = 13866^2 + 6479^2 .

It is a cyclic number.

It is not a de Polignac number, because 234243397 - 2³ = 234243389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234243307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117121698 + 117121699.

It is an arithmetic number, because the mean of its divisors is an integer number (117121699).

Almost surely, 2^234243397 is an apocalyptic number.

It is an amenable number.

234243397 is a deficient number, since it is larger than the sum of its proper divisors (1).

234243397 is an equidigital number, since it uses as much as digits as its factorization.

234243397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 37.

The square root of 234243397 is about 15305.0121528864. The cubic root of 234243397 is about 616.4375975429.

It can be divided in two parts, 2342433 and 97, that added together give a triangular number (2342530 = T₂₁₆₄).

The spelling of 234243397 in words is "two hundred thirty-four million, two hundred forty-three thousand, three hundred ninety-seven".