2447966247 has 16 divisors (see below), whose sum is σ = 3296128512. Its totient is φ = 1615960800.

The previous prime is 2447966239. The next prime is 2447966249. The reversal of 2447966247 is 7426697442.

It is not a de Polignac number, because 2447966247 - 2³ = 2447966239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2447966247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2447966249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135078 + ... + 152124.

It is an arithmetic number, because the mean of its divisors is an integer number (206008032).

Almost surely, 2^2447966247 is an apocalyptic number.

2447966247 is a deficient number, since it is larger than the sum of its proper divisors (848162265).

2447966247 is a wasteful number, since it uses less digits than its factorization.

2447966247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17518.

The product of its digits is 4064256, while the sum is 51.

The square root of 2447966247 is about 49476.9264101965. The cubic root of 2447966247 is about 1347.7266259570.

The spelling of 2447966247 in words is "two billion, four hundred forty-seven million, nine hundred sixty-six thousand, two hundred forty-seven".