345891856 has 10 divisors (see below), whose sum is σ = 670165502. Its totient is φ = 172945920.

The previous prime is 345891853. The next prime is 345891857. The reversal of 345891856 is 658198543.

345891856 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 323424256 + 22467600 = 17984^2 + 4740^2 .

It is not an unprimeable number, because it can be changed into a prime (345891853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10809105 + ... + 10809136.

Almost surely, 2^345891856 is an apocalyptic number.

It is an amenable number.

345891856 is a deficient number, since it is larger than the sum of its proper divisors (324273646).

345891856 is a wasteful number, since it uses less digits than its factorization.

345891856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21618249 (or 21618243 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 49.

The square root of 345891856 is about 18598.1680818300. The cubic root of 345891856 is about 701.9617460615.

The spelling of 345891856 in words is "three hundred forty-five million, eight hundred ninety-one thousand, eight hundred fifty-six".