247415 has 8 divisors (see below), whose sum is σ = 339360. Its totient is φ = 169632.

The previous prime is 247409. The next prime is 247421. The reversal of 247415 is 514742.

It is an interprime number because it is at equal distance from previous prime (247409) and next prime (247421).

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 247415 - 2¹⁰ = 246391 is a prime.

It is a super-2 number, since 2×247415² = 122428364450, which contains 22 as substring.

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, 3500 + ... + 3569.

It is an arithmetic number, because the mean of its divisors is an integer number (42420).

2²⁴⁷⁴¹⁵ is an apocalyptic number.

247415 is a deficient number, since it is larger than the sum of its proper divisors (91945).

247415 is an equidigital number, since it uses as much as digits as its factorization.

247415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7081.

The product of its digits is 1120, while the sum is 23.

The square root of 247415 is about 497.4082830030. The cubic root of 247415 is about 62.7781734094.

It can be divided in two parts, 2 and 47415, that multiplied together give a triangular number (94830 = T₄₃₅).

The spelling of 247415 in words is "two hundred forty-seven thousand, four hundred fifteen".