353491 has 4 divisors (see below), whose sum is σ = 355984. Its totient is φ = 351000.

The previous prime is 353489. The next prime is 353501. The reversal of 353491 is 194353.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 353491 - 2¹ = 353489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (353401) 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, 1020 + ... + 1321.

It is an arithmetic number, because the mean of its divisors is an integer number (88996).

2³⁵³⁴⁹¹ is an apocalyptic number.

353491 is a deficient number, since it is larger than the sum of its proper divisors (2493).

353491 is a wasteful number, since it uses less digits than its factorization.

353491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492.

The product of its digits is 1620, while the sum is 25.

The square root of 353491 is about 594.5510911604. The cubic root of 353491 is about 70.7065185011.

The spelling of 353491 in words is "three hundred fifty-three thousand, four hundred ninety-one".