247874613 has 16 divisors (see below), whose sum is σ = 379806336. Its totient is φ = 140857920.

The previous prime is 247874591. The next prime is 247874617. The reversal of 247874613 is 316478742.

It is not a de Polignac number, because 247874613 - 2¹⁰ = 247873589 is a prime.

It is a super-2 number, since 2×247874613² = 122883647539799538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247874617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28806 + ... + 36407.

It is an arithmetic number, because the mean of its divisors is an integer number (23737896).

Almost surely, 2^247874613 is an apocalyptic number.

It is an amenable number.

247874613 is a deficient number, since it is larger than the sum of its proper divisors (131931723).

247874613 is a wasteful number, since it uses less digits than its factorization.

247874613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65404.

The product of its digits is 225792, while the sum is 42.

The square root of 247874613 is about 15744.0342034689. The cubic root of 247874613 is about 628.1702286780.

The spelling of 247874613 in words is "two hundred forty-seven million, eight hundred seventy-four thousand, six hundred thirteen".