247248881 has 16 divisors (see below), whose sum is σ = 288748800. Its totient is φ = 209322000.

The previous prime is 247248877. The next prime is 247248887. The reversal of 247248881 is 188842742.

It is a cyclic number.

It is not a de Polignac number, because 247248881 - 2² = 247248877 is a prime.

It is a super-2 number, since 2×247248881² = 122264018311504322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (247248887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2306 + ... + 22356.

It is an arithmetic number, because the mean of its divisors is an integer number (18046800).

Almost surely, 2^247248881 is an apocalyptic number.

It is an amenable number.

247248881 is a deficient number, since it is larger than the sum of its proper divisors (41499919).

247248881 is a wasteful number, since it uses less digits than its factorization.

247248881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20140.

The product of its digits is 229376, while the sum is 44.

The square root of 247248881 is about 15724.1496113462. The cubic root of 247248881 is about 627.6412012206.

The spelling of 247248881 in words is "two hundred forty-seven million, two hundred forty-eight thousand, eight hundred eighty-one".