351663 has 16 divisors (see below), whose sum is σ = 516096. Its totient is φ = 211680.

The previous prime is 351661. The next prime is 351667. The reversal of 351663 is 366153.

It is not a de Polignac number, because 351663 - 2¹ = 351661 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 351663.

It is not an unprimeable number, because it can be changed into a prime (351661) 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 15 ways as a sum of consecutive naturals, for example, 2706 + ... + 2832.

It is an arithmetic number, because the mean of its divisors is an integer number (32256).

2³⁵¹⁶⁶³ is an apocalyptic number.

351663 is a deficient number, since it is larger than the sum of its proper divisors (164433).

351663 is a wasteful number, since it uses less digits than its factorization.

351663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214.

The product of its digits is 1620, while the sum is 24.

The square root of 351663 is about 593.0118042670. The cubic root of 351663 is about 70.5844267962.

The spelling of 351663 in words is "three hundred fifty-one thousand, six hundred sixty-three".