247349 has 8 divisors (see below), whose sum is σ = 261120. Its totient is φ = 234000.

The previous prime is 247343. The next prime is 247363. The reversal of 247349 is 943742.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 247349 - 2¹⁶ = 181813 is a prime.

It is a super-2 number, since 2×247349² = 122363055602, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁹ + 4⁶ + 3¹¹ + 7² + 4⁸ + 9 .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2399 + ... + 2499.

It is an arithmetic number, because the mean of its divisors is an integer number (32640).

2²⁴⁷³⁴⁹ is an apocalyptic number.

It is an amenable number.

247349 is a deficient number, since it is larger than the sum of its proper divisors (13771).

247349 is a wasteful number, since it uses less digits than its factorization.

247349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211.

The product of its digits is 6048, while the sum is 29.

The square root of 247349 is about 497.3419346888. The cubic root of 247349 is about 62.7725907137.

The spelling of 247349 in words is "two hundred forty-seven thousand, three hundred forty-nine".