351686667 has 8 divisors (see below), whose sum is σ = 496498896. Its totient is φ = 220666112.

The previous prime is 351686663. The next prime is 351686689. The reversal of 351686667 is 766686153.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 351686667 - 2² = 351686663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (351686663) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3447858 + ... + 3447959.

It is an arithmetic number, because the mean of its divisors is an integer number (62062362).

Almost surely, 2^351686667 is an apocalyptic number.

351686667 is a deficient number, since it is larger than the sum of its proper divisors (144812229).

351686667 is a wasteful number, since it uses less digits than its factorization.

351686667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6895837.

The product of its digits is 1088640, while the sum is 48.

The square root of 351686667 is about 18753.3108276912. The cubic root of 351686667 is about 705.8601020997.

The spelling of 351686667 in words is "three hundred fifty-one million, six hundred eighty-six thousand, six hundred sixty-seven".