345636407 has 2 divisors, whose sum is σ = 345636408. Its totient is φ = 345636406.

The previous prime is 345636383. The next prime is 345636419. The reversal of 345636407 is 704636543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345636407 - 2¹² = 345632311 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345636607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172818203 + 172818204.

It is an arithmetic number, because the mean of its divisors is an integer number (172818204).

Almost surely, 2^345636407 is an apocalyptic number.

345636407 is a deficient number, since it is larger than the sum of its proper divisors (1).

345636407 is an equidigital number, since it uses as much as digits as its factorization.

345636407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 38.

The square root of 345636407 is about 18591.2992284025. The cubic root of 345636407 is about 701.7888986007.

The spelling of 345636407 in words is "three hundred forty-five million, six hundred thirty-six thousand, four hundred seven".