52947847 has 2 divisors, whose sum is σ = 52947848. Its totient is φ = 52947846.

The previous prime is 52947827. The next prime is 52947857. The reversal of 52947847 is 74874925.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52947847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52947797 and 52947806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52947827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26473923 + 26473924.

It is an arithmetic number, because the mean of its divisors is an integer number (26473924).

Almost surely, 2^52947847 is an apocalyptic number.

52947847 is a deficient number, since it is larger than the sum of its proper divisors (1).

52947847 is an equidigital number, since it uses as much as digits as its factorization.

52947847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 46.

The square root of 52947847 is about 7276.5271249409. The cubic root of 52947847 is about 375.5053264516.

The spelling of 52947847 in words is "fifty-two million, nine hundred forty-seven thousand, eight hundred forty-seven".