247814972 has 24 divisors (see below), whose sum is σ = 453931296. Its totient is φ = 118153728.

The previous prime is 247814971. The next prime is 247814999. The reversal of 247814972 is 279418742.

It is a super-2 number, since 2×247814972² = 122824520694721568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247814971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27008 + ... + 35000.

It is an arithmetic number, because the mean of its divisors is an integer number (18913804).

Almost surely, 2^247814972 is an apocalyptic number.

It is an amenable number.

247814972 is a deficient number, since it is larger than the sum of its proper divisors (206116324).

247814972 is a wasteful number, since it uses less digits than its factorization.

247814972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8357 (or 8355 counting only the distinct ones).

The product of its digits is 225792, while the sum is 44.

The square root of 247814972 is about 15742.1400070003. The cubic root of 247814972 is about 628.1198433840.

The spelling of 247814972 in words is "two hundred forty-seven million, eight hundred fourteen thousand, nine hundred seventy-two".