47567647 has 2 divisors, whose sum is σ = 47567648. Its totient is φ = 47567646.

The previous prime is 47567593. The next prime is 47567669. The reversal of 47567647 is 74676574.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47567647 - 2²³ = 39179039 is a prime.

It is a super-2 number, since 2×47567647² = 4525362082233218, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47567597 and 47567606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47567677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23783823 + 23783824.

It is an arithmetic number, because the mean of its divisors is an integer number (23783824).

Almost surely, 2^47567647 is an apocalyptic number.

47567647 is a deficient number, since it is larger than the sum of its proper divisors (1).

47567647 is an equidigital number, since it uses as much as digits as its factorization.

47567647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987840, while the sum is 46.

The square root of 47567647 is about 6896.9302591805. The cubic root of 47567647 is about 362.3296626590.

It can be divided in two parts, 4756 and 7647, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 47567647 in words is "forty-seven million, five hundred sixty-seven thousand, six hundred forty-seven".