351006856 has 8 divisors (see below), whose sum is σ = 658137870. Its totient is φ = 175503424.

The previous prime is 351006853. The next prime is 351006869. The reversal of 351006856 is 658600153.

It can be written as a sum of positive squares in only one way, i.e., 350962756 + 44100 = 18734^2 + 210^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (351006853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21937921 + ... + 21937936.

Almost surely, 2^351006856 is an apocalyptic number.

It is an amenable number.

351006856 is a deficient number, since it is larger than the sum of its proper divisors (307131014).

351006856 is a wasteful number, since it uses less digits than its factorization.

351006856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43875863 (or 43875859 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 351006856 is about 18735.1769674055. The cubic root of 351006856 is about 705.4049990928.

The spelling of 351006856 in words is "three hundred fifty-one million, six thousand, eight hundred fifty-six".