345666849 has 8 divisors (see below), whose sum is σ = 502788192. Its totient is φ = 209495040.

The previous prime is 345666847. The next prime is 345666851. The reversal of 345666849 is 948666543.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (345666847) and next prime (345666851).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 345666849 - 2¹ = 345666847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345666847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5237344 + ... + 5237409.

It is an arithmetic number, because the mean of its divisors is an integer number (62848524).

Almost surely, 2^345666849 is an apocalyptic number.

It is an amenable number.

345666849 is a deficient number, since it is larger than the sum of its proper divisors (157121343).

345666849 is a wasteful number, since it uses less digits than its factorization.

345666849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10474767.

The product of its digits is 3732480, while the sum is 51.

The square root of 345666849 is about 18592.1179266914. The cubic root of 345666849 is about 701.8095013980.

The spelling of 345666849 in words is "three hundred forty-five million, six hundred sixty-six thousand, eight hundred forty-nine".