345646423 has 4 divisors (see below), whose sum is σ = 363838360. Its totient is φ = 327454488.

The previous prime is 345646421. The next prime is 345646453. The reversal of 345646423 is 324646543.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345646423 - 2¹ = 345646421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345646421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9095940 + ... + 9095977.

It is an arithmetic number, because the mean of its divisors is an integer number (90959590).

Almost surely, 2^345646423 is an apocalyptic number.

345646423 is a deficient number, since it is larger than the sum of its proper divisors (18191937).

345646423 is a wasteful number, since it uses less digits than its factorization.

345646423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18191936.

The product of its digits is 207360, while the sum is 37.

The square root of 345646423 is about 18591.5685997712. The cubic root of 345646423 is about 701.7956774484.

The spelling of 345646423 in words is "three hundred forty-five million, six hundred forty-six thousand, four hundred twenty-three".