247354 has 4 divisors (see below), whose sum is σ = 371034. Its totient is φ = 123676.

The previous prime is 247343. The next prime is 247363. The reversal of 247354 is 453742.

247354 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 453742 = 2 ⋅226871.

It can be written as a sum of positive squares in only one way, i.e., 182329 + 65025 = 427^2 + 255^2 .

It is a super-2 number, since 2×247354² = 122368002632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61837 + ... + 61840.

2²⁴⁷³⁵⁴ is an apocalyptic number.

247354 is a deficient number, since it is larger than the sum of its proper divisors (123680).

247354 is a wasteful number, since it uses less digits than its factorization.

247354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123679.

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

The square root of 247354 is about 497.3469613861. The cubic root of 247354 is about 62.7730136800.

The spelling of 247354 in words is "two hundred forty-seven thousand, three hundred fifty-four".