345386673 has 10 divisors (see below), whose sum is σ = 515948114. Its totient is φ = 230257728.

The previous prime is 345386651. The next prime is 345386677. The reversal of 345386673 is 376683543.

It can be written as a sum of positive squares in only one way, i.e., 258952464 + 86434209 = 16092^2 + 9297^2 .

It is not a de Polignac number, because 345386673 - 2²⁶ = 278277809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345386677) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2131936 + ... + 2132097.

Almost surely, 2^345386673 is an apocalyptic number.

It is an amenable number.

345386673 is a deficient number, since it is larger than the sum of its proper divisors (170561441).

345386673 is an equidigital number, since it uses as much as digits as its factorization.

345386673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264045 (or 4264036 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The square root of 345386673 is about 18584.5815933531. The cubic root of 345386673 is about 701.6198358006.

The spelling of 345386673 in words is "three hundred forty-five million, three hundred eighty-six thousand, six hundred seventy-three".