247327983 has 12 divisors (see below), whose sum is σ = 408287568. Its totient is φ = 141330240.

The previous prime is 247327973. The next prime is 247327991. The reversal of 247327983 is 389723742.

247327983 is a `hidden beast` number, since 247 + 327 + 9 + 83 = 666.

It is not a de Polignac number, because 247327983 - 2⁶ = 247327919 is a prime.

It is a super-2 number, since 2×247327983² = 122342262349696578, 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (247327963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1962858 + ... + 1962983.

It is an arithmetic number, because the mean of its divisors is an integer number (34023964).

Almost surely, 2^247327983 is an apocalyptic number.

247327983 is a deficient number, since it is larger than the sum of its proper divisors (160959585).

247327983 is a wasteful number, since it uses less digits than its factorization.

247327983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925854 (or 3925851 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 247327983 is about 15726.6647131552. The cubic root of 247327983 is about 627.7081275506.

The spelling of 247327983 in words is "two hundred forty-seven million, three hundred twenty-seven thousand, nine hundred eighty-three".