247798134 has 12 divisors (see below), whose sum is σ = 536895996. Its totient is φ = 82599372.

The previous prime is 247798129. The next prime is 247798151. The reversal of 247798134 is 431897742.

It is a super-2 number, since 2×247798134² = 122807830427763912, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 247798134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6883264 + ... + 6883299.

It is an arithmetic number, because the mean of its divisors is an integer number (44741333).

Almost surely, 2^247798134 is an apocalyptic number.

247798134 is an abundant number, since it is smaller than the sum of its proper divisors (289097862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247798134 is a wasteful number, since it uses less digits than its factorization.

247798134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13766571 (or 13766568 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 247798134 is about 15741.6051913393. The cubic root of 247798134 is about 628.1056170153.

The spelling of 247798134 in words is "two hundred forty-seven million, seven hundred ninety-eight thousand, one hundred thirty-four".