345516727 has 2 divisors, whose sum is σ = 345516728. Its totient is φ = 345516726.

The previous prime is 345516709. The next prime is 345516733. The reversal of 345516727 is 727615543.

It is a strong prime.

It is an emirp because it is prime and its reverse (727615543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345516727 - 2²³ = 337128119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345516727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345516707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172758363 + 172758364.

It is an arithmetic number, because the mean of its divisors is an integer number (172758364).

Almost surely, 2^345516727 is an apocalyptic number.

345516727 is a deficient number, since it is larger than the sum of its proper divisors (1).

345516727 is an equidigital number, since it uses as much as digits as its factorization.

345516727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176400, while the sum is 40.

The square root of 345516727 is about 18588.0802397666. The cubic root of 345516727 is about 701.7078888173.

The spelling of 345516727 in words is "three hundred forty-five million, five hundred sixteen thousand, seven hundred twenty-seven".