351697 has 4 divisors (see below), whose sum is σ = 359920. Its totient is φ = 343476.

The previous prime is 351691. The next prime is 351707. The reversal of 351697 is 796153.

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, and also an emirpimes, since its reverse is a distinct semiprime: 796153 = 857 ⋅929.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351697 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 351697.

It is not an unprimeable number, because it can be changed into a prime (351691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4047 + ... + 4132.

It is an arithmetic number, because the mean of its divisors is an integer number (89980).

2³⁵¹⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

351697 is a deficient number, since it is larger than the sum of its proper divisors (8223).

351697 is an equidigital number, since it uses as much as digits as its factorization.

351697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8222.

The product of its digits is 5670, while the sum is 31.

The square root of 351697 is about 593.0404707944. The cubic root of 351697 is about 70.5867015053.

It can be divided in two parts, 35 and 1697, that multiplied together give a palindrome (59395).

The spelling of 351697 in words is "three hundred fifty-one thousand, six hundred ninety-seven".