345364399 has 2 divisors, whose sum is σ = 345364400. Its totient is φ = 345364398.

The previous prime is 345364391. The next prime is 345364421. The reversal of 345364399 is 993463543.

It is a weak prime.

It is an emirp because it is prime and its reverse (993463543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345364399 - 2³ = 345364391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345364391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172682199 + 172682200.

It is an arithmetic number, because the mean of its divisors is an integer number (172682200).

Almost surely, 2^345364399 is an apocalyptic number.

345364399 is a deficient number, since it is larger than the sum of its proper divisors (1).

345364399 is an equidigital number, since it uses as much as digits as its factorization.

345364399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1049760, while the sum is 46.

The square root of 345364399 is about 18583.9823234957. The cubic root of 345364399 is about 701.6047529795.

The spelling of 345364399 in words is "three hundred forty-five million, three hundred sixty-four thousand, three hundred ninety-nine".