345398983 has 2 divisors, whose sum is σ = 345398984. Its totient is φ = 345398982.

The previous prime is 345398971. The next prime is 345398987. The reversal of 345398983 is 389893543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345398983 - 2⁵ = 345398951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345398983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345398987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172699491 + 172699492.

It is an arithmetic number, because the mean of its divisors is an integer number (172699492).

Almost surely, 2^345398983 is an apocalyptic number.

345398983 is a deficient number, since it is larger than the sum of its proper divisors (1).

345398983 is an equidigital number, since it uses as much as digits as its factorization.

345398983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 52.

The square root of 345398983 is about 18584.9127789183. The cubic root of 345398983 is about 701.6281712290.

The spelling of 345398983 in words is "three hundred forty-five million, three hundred ninety-eight thousand, nine hundred eighty-three".