345679506 has 12 divisors (see below), whose sum is σ = 748972302. Its totient is φ = 115226496.

The previous prime is 345679441. The next prime is 345679531. The reversal of 345679506 is 605976543.

345679506 is a `hidden beast` number, since 34 + 567 + 9 + 50 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 302238225 + 43441281 = 17385^2 + 6591^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 9602191 + ... + 9602226.

Almost surely, 2^345679506 is an apocalyptic number.

345679506 is an abundant number, since it is smaller than the sum of its proper divisors (403292796).

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

345679506 is a wasteful number, since it uses less digits than its factorization.

345679506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19204425 (or 19204422 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The square root of 345679506 is about 18592.4583097556. The cubic root of 345679506 is about 701.8180671547.

The spelling of 345679506 in words is "three hundred forty-five million, six hundred seventy-nine thousand, five hundred six".