247695 has 24 divisors (see below), whose sum is σ = 462384. Its totient is φ = 112896.

The previous prime is 247693. The next prime is 247697. The reversal of 247695 is 596742.

247695 is nontrivially palindromic in base 2.

It is an interprime number because it is at equal distance from previous prime (247693) and next prime (247697).

It is not a de Polignac number, because 247695 - 2¹ = 247693 is a prime.

It is a super-2 number, since 2×247695² = 122705626050, which contains 22 as substring.

247695 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 247695.

It is not an unprimeable number, because it can be changed into a prime (247691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 567 + ... + 903.

It is an arithmetic number, because the mean of its divisors is an integer number (19266).

2²⁴⁷⁶⁹⁵ is an apocalyptic number.

247695 is a deficient number, since it is larger than the sum of its proper divisors (214689).

247695 is a wasteful number, since it uses less digits than its factorization.

247695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 352 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 247695 is about 497.6896623399. The cubic root of 247695 is about 62.8018465385.

The spelling of 247695 in words is "two hundred forty-seven thousand, six hundred ninety-five".