355897 has 4 divisors (see below), whose sum is σ = 357120. Its totient is φ = 354676.

The previous prime is 355891. The next prime is 355909. The reversal of 355897 is 798553.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-355897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355891) 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, 108 + ... + 850.

It is an arithmetic number, because the mean of its divisors is an integer number (89280).

2³⁵⁵⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

355897 is a deficient number, since it is larger than the sum of its proper divisors (1223).

355897 is an equidigital number, since it uses as much as digits as its factorization.

355897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222.

The product of its digits is 37800, while the sum is 37.

The square root of 355897 is about 596.5710351668. The cubic root of 355897 is about 70.8665747860.

It can be divided in two parts, 3558 and 97, that added together give a triangular number (3655 = T₈₅).

The spelling of 355897 in words is "three hundred fifty-five thousand, eight hundred ninety-seven".