351680673 has 4 divisors (see below), whose sum is σ = 468907568. Its totient is φ = 234453780.

The previous prime is 351680627. The next prime is 351680713. The reversal of 351680673 is 376086153.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 351680673 - 2¹⁶ = 351615137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351680873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58613443 + ... + 58613448.

It is an arithmetic number, because the mean of its divisors is an integer number (117226892).

Almost surely, 2^351680673 is an apocalyptic number.

It is an amenable number.

351680673 is a deficient number, since it is larger than the sum of its proper divisors (117226895).

351680673 is a wasteful number, since it uses less digits than its factorization.

351680673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117226894.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 351680673 is about 18753.1510152294. The cubic root of 351680673 is about 705.8560919491.

The spelling of 351680673 in words is "three hundred fifty-one million, six hundred eighty thousand, six hundred seventy-three".