247895 has 8 divisors (see below), whose sum is σ = 304656. Its totient is φ = 193536.

The previous prime is 247889. The next prime is 247901. The reversal of 247895 is 598742.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (247889) and next prime (247901).

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 247895 - 2⁴ = 247879 is a prime.

It is a super-2 number, since 2×247895² = 122903862050, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362 + ... + 791.

It is an arithmetic number, because the mean of its divisors is an integer number (38082).

2²⁴⁷⁸⁹⁵ is an apocalyptic number.

247895 is a deficient number, since it is larger than the sum of its proper divisors (56761).

247895 is a wasteful number, since it uses less digits than its factorization.

247895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201.

The product of its digits is 20160, while the sum is 35.

The square root of 247895 is about 497.8905502216. The cubic root of 247895 is about 62.8187449959.

The spelling of 247895 in words is "two hundred forty-seven thousand, eight hundred ninety-five".