354287 has 4 divisors (see below), whose sum is σ = 355656. Its totient is φ = 352920.

The previous prime is 354271. The next prime is 354301. The reversal of 354287 is 782453.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 782453 = 7 ⋅111779.

It is a cyclic number.

It is not a de Polignac number, because 354287 - 2⁴ = 354271 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 354287.

It is not an unprimeable number, because it can be changed into a prime (354247) 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, 164 + ... + 857.

It is an arithmetic number, because the mean of its divisors is an integer number (88914).

2³⁵⁴²⁸⁷ is an apocalyptic number.

354287 is a deficient number, since it is larger than the sum of its proper divisors (1369).

354287 is a wasteful number, since it uses less digits than its factorization.

354287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368.

The product of its digits is 6720, while the sum is 29.

The square root of 354287 is about 595.2201273479. The cubic root of 354287 is about 70.7595516245.

The spelling of 354287 in words is "three hundred fifty-four thousand, two hundred eighty-seven".