351606847 has 2 divisors, whose sum is σ = 351606848. Its totient is φ = 351606846.

The previous prime is 351606833. The next prime is 351606863. The reversal of 351606847 is 748606153.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (748606153) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351606847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351606347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175803423 + 175803424.

It is an arithmetic number, because the mean of its divisors is an integer number (175803424).

Almost surely, 2^351606847 is an apocalyptic number.

351606847 is a deficient number, since it is larger than the sum of its proper divisors (1).

351606847 is an equidigital number, since it uses as much as digits as its factorization.

351606847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 351606847 is about 18751.1825493754. The cubic root of 351606847 is about 705.8066965907.

The spelling of 351606847 in words is "three hundred fifty-one million, six hundred six thousand, eight hundred forty-seven".