247971483 has 16 divisors (see below), whose sum is σ = 375183360. Its totient is φ = 161796168.

The previous prime is 247971481. The next prime is 247971499. The reversal of 247971483 is 384179742.

It is not a de Polignac number, because 247971483 - 2¹ = 247971481 is a prime.

It is a super-2 number, since 2×247971483² = 122979712762438578, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247971481) 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, 96435 + ... + 98972.

It is an arithmetic number, because the mean of its divisors is an integer number (23448960).

Almost surely, 2^247971483 is an apocalyptic number.

247971483 is a deficient number, since it is larger than the sum of its proper divisors (127211877).

247971483 is a wasteful number, since it uses less digits than its factorization.

247971483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195463 (or 195457 counting only the distinct ones).

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

The square root of 247971483 is about 15747.1103063387. The cubic root of 247971483 is about 628.2520481702.

The spelling of 247971483 in words is "two hundred forty-seven million, nine hundred seventy-one thousand, four hundred eighty-three".