234720427 has 2 divisors, whose sum is σ = 234720428. Its totient is φ = 234720426.

The previous prime is 234720419. The next prime is 234720457. The reversal of 234720427 is 724027432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 234720427 - 2³ = 234720419 is a prime.

It is not a weakly prime, because it can be changed into another prime (234720407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117360213 + 117360214.

It is an arithmetic number, because the mean of its divisors is an integer number (117360214).

Almost surely, 2^234720427 is an apocalyptic number.

234720427 is a deficient number, since it is larger than the sum of its proper divisors (1).

234720427 is an equidigital number, since it uses as much as digits as its factorization.

234720427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 234720427 is about 15320.5883372669. The cubic root of 234720427 is about 616.8557663395.

Adding to 234720427 its reverse (724027432), we get a palindrome (958747859).

The spelling of 234720427 in words is "two hundred thirty-four million, seven hundred twenty thousand, four hundred twenty-seven".