345739686 has 12 divisors (see below), whose sum is σ = 691570476. Its totient is φ = 115231380.

The previous prime is 345739679. The next prime is 345739697. The reversal of 345739686 is 686937543.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41751 + ... + 49341.

It is an arithmetic number, because the mean of its divisors is an integer number (57630873).

Almost surely, 2^345739686 is an apocalyptic number.

345739686 is an abundant number, since it is smaller than the sum of its proper divisors (345830790).

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

345739686 is an frugal number, since it uses more digits than its factorization.

345739686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15187 (or 7596 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 51.

The square root of 345739686 is about 18594.0766374671. The cubic root of 345739686 is about 701.8587917371.

The spelling of 345739686 in words is "three hundred forty-five million, seven hundred thirty-nine thousand, six hundred eighty-six".