345319686 has 20 divisors (see below), whose sum is σ = 773772252. Its totient is φ = 115106508.

The previous prime is 345319621. The next prime is 345319693. The reversal of 345319686 is 686913543.

345319686 is a `hidden beast` number, since 3 + 453 + 196 + 8 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1065640 + ... + 1065963.

Almost surely, 2^345319686 is an apocalyptic number.

345319686 is an abundant number, since it is smaller than the sum of its proper divisors (428452566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345319686 is a wasteful number, since it uses less digits than its factorization.

345319686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131617 (or 2131608 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 345319686 is about 18582.7792862101. The cubic root of 345319686 is about 701.5744736501.

The spelling of 345319686 in words is "three hundred forty-five million, three hundred nineteen thousand, six hundred eighty-six".