351870473 has 2 divisors, whose sum is σ = 351870474. Its totient is φ = 351870472.

The previous prime is 351870469. The next prime is 351870521. The reversal of 351870473 is 374078153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300432889 + 51437584 = 17333^2 + 7172^2 .

It is an emirp because it is prime and its reverse (374078153) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 351870473 - 2² = 351870469 is a prime.

It is not a weakly prime, because it can be changed into another prime (351870413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175935236 + 175935237.

It is an arithmetic number, because the mean of its divisors is an integer number (175935237).

Almost surely, 2^351870473 is an apocalyptic number.

It is an amenable number.

351870473 is a deficient number, since it is larger than the sum of its proper divisors (1).

351870473 is an equidigital number, since it uses as much as digits as its factorization.

351870473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 351870473 is about 18758.2108155336. The cubic root of 351870473 is about 705.9830512454.

The spelling of 351870473 in words is "three hundred fifty-one million, eight hundred seventy thousand, four hundred seventy-three".