354491 has 4 divisors (see below), whose sum is σ = 357912. Its totient is φ = 351072.

The previous prime is 354479. The next prime is 354533. The reversal of 354491 is 194453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 194453 = 7 ⋅27779.

It is a cyclic number.

It is not a de Polignac number, because 354491 - 2¹⁸ = 92347 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 354491.

It is not an unprimeable number, because it can be changed into a prime (354401) 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, 1550 + ... + 1763.

It is an arithmetic number, because the mean of its divisors is an integer number (89478).

2³⁵⁴⁴⁹¹ is an apocalyptic number.

354491 is a deficient number, since it is larger than the sum of its proper divisors (3421).

354491 is a wasteful number, since it uses less digits than its factorization.

354491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3420.

The product of its digits is 2160, while the sum is 26.

The square root of 354491 is about 595.3914678596. The cubic root of 354491 is about 70.7731302381.

The spelling of 354491 in words is "three hundred fifty-four thousand, four hundred ninety-one".