351997716 has 48 divisors (see below), whose sum is σ = 993879936. Its totient is φ = 94654464.

The previous prime is 351997661. The next prime is 351997721. The reversal of 351997716 is 617799153.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121821 + ... + 124676.

It is an arithmetic number, because the mean of its divisors is an integer number (20705832).

Almost surely, 2^351997716 is an apocalyptic number.

It is an amenable number.

351997716 is an abundant number, since it is smaller than the sum of its proper divisors (641882220).

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

351997716 is a wasteful number, since it uses less digits than its factorization.

351997716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246528 (or 246526 counting only the distinct ones).

The product of its digits is 357210, while the sum is 48.

The square root of 351997716 is about 18761.6021703905. The cubic root of 351997716 is about 706.0681399188.

The spelling of 351997716 in words is "three hundred fifty-one million, nine hundred ninety-seven thousand, seven hundred sixteen".