354247 has 2 divisors, whose sum is σ = 354248. Its totient is φ = 354246.

The previous prime is 354209. The next prime is 354251. The reversal of 354247 is 742453.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354247 is a prime.

It is a super-3 number, since 3×354247³ = 133364363887881669, which contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177123 + 177124.

It is an arithmetic number, because the mean of its divisors is an integer number (177124).

2³⁵⁴²⁴⁷ is an apocalyptic number.

354247 is a deficient number, since it is larger than the sum of its proper divisors (1).

354247 is an equidigital number, since it uses as much as digits as its factorization.

354247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 25.

The square root of 354247 is about 595.1865253851. The cubic root of 354247 is about 70.7568885400.

The spelling of 354247 in words is "three hundred fifty-four thousand, two hundred forty-seven".