247955 has 8 divisors (see below), whose sum is σ = 301104. Its totient is φ = 196000.

The previous prime is 247943. The next prime is 247957. The reversal of 247955 is 559742.

247955 = 76² + 77² + ... + 105².

247955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 247955 - 2⁴ = 247939 is a prime.

It is a super-2 number, since 2×247955² = 122963364050, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247957) 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, 260 + ... + 750.

It is an arithmetic number, because the mean of its divisors is an integer number (37638).

2²⁴⁷⁹⁵⁵ is an apocalyptic number.

247955 is a deficient number, since it is larger than the sum of its proper divisors (53149).

247955 is a wasteful number, since it uses less digits than its factorization.

247955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597.

The product of its digits is 12600, while the sum is 32.

The square root of 247955 is about 497.9508007826. The cubic root of 247955 is about 62.8238127607.

The spelling of 247955 in words is "two hundred forty-seven thousand, nine hundred fifty-five".