351889 has 4 divisors (see below), whose sum is σ = 359424. Its totient is φ = 344356.

The previous prime is 351887. The next prime is 351913. The reversal of 351889 is 988153.

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: 988153 = 233 ⋅4241.

It is a cyclic number.

It is not a de Polignac number, because 351889 - 2¹ = 351887 is a prime.

It is an Ulam number.

It is a Duffinian number.

351889 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351887) 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, 3697 + ... + 3790.

It is an arithmetic number, because the mean of its divisors is an integer number (89856).

2³⁵¹⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

351889 is a deficient number, since it is larger than the sum of its proper divisors (7535).

351889 is an equidigital number, since it uses as much as digits as its factorization.

351889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7534.

The product of its digits is 8640, while the sum is 34.

The square root of 351889 is about 593.2023263609. The cubic root of 351889 is about 70.5995441712.

The spelling of 351889 in words is "three hundred fifty-one thousand, eight hundred eighty-nine".