247413 has 4 divisors (see below), whose sum is σ = 329888. Its totient is φ = 164940.

The previous prime is 247409. The next prime is 247421. The reversal of 247413 is 314742.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 247413 - 2² = 247409 is a prime.

It is a super-2 number, since 2×247413² = 122426385138, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 247413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41233 + ... + 41238.

It is an arithmetic number, because the mean of its divisors is an integer number (82472).

2²⁴⁷⁴¹³ is an apocalyptic number.

It is an amenable number.

247413 is a deficient number, since it is larger than the sum of its proper divisors (82475).

247413 is an equidigital number, since it uses as much as digits as its factorization.

247413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82474.

The product of its digits is 672, while the sum is 21.

The square root of 247413 is about 497.4062725781. The cubic root of 247413 is about 62.7780042514.

The spelling of 247413 in words is "two hundred forty-seven thousand, four hundred thirteen".