6972005647 has 4 divisors (see below), whose sum is σ = 6984389880. Its totient is φ = 6959621416.

The previous prime is 6972005641. The next prime is 6972005653. The reversal of 6972005647 is 7465002796.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6972005641) and next prime (6972005653).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6972005647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6972005597 and 6972005606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6972005641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6191272 + ... + 6192397.

It is an arithmetic number, because the mean of its divisors is an integer number (1746097470).

Almost surely, 2^6972005647 is an apocalyptic number.

6972005647 is a deficient number, since it is larger than the sum of its proper divisors (12384233).

6972005647 is a wasteful number, since it uses less digits than its factorization.

6972005647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12384232.

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 6972005647 is about 83498.5367955631. The cubic root of 6972005647 is about 1910.3777152905.

The spelling of 6972005647 in words is "six billion, nine hundred seventy-two million, five thousand, six hundred forty-seven".