234493691 has 2 divisors, whose sum is σ = 234493692. Its totient is φ = 234493690.

The previous prime is 234493621. The next prime is 234493711. The reversal of 234493691 is 196394432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 234493691 - 2¹⁰ = 234492667 is a prime.

It is a super-2 number, since 2×234493691² = 109974582237606962, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (234493621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117246845 + 117246846.

It is an arithmetic number, because the mean of its divisors is an integer number (117246846).

Almost surely, 2^234493691 is an apocalyptic number.

234493691 is a deficient number, since it is larger than the sum of its proper divisors (1).

234493691 is an equidigital number, since it uses as much as digits as its factorization.

234493691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 41.

The square root of 234493691 is about 15313.1868335758. The cubic root of 234493691 is about 616.6570782374.

The spelling of 234493691 in words is "two hundred thirty-four million, four hundred ninety-three thousand, six hundred ninety-one".