53989847 has 2 divisors, whose sum is σ = 53989848. Its totient is φ = 53989846.

The previous prime is 53989829. The next prime is 53989867. The reversal of 53989847 is 74898935.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53989847 - 2⁶ = 53989783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53989867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26994923 + 26994924.

It is an arithmetic number, because the mean of its divisors is an integer number (26994924).

Almost surely, 2^53989847 is an apocalyptic number.

53989847 is a deficient number, since it is larger than the sum of its proper divisors (1).

53989847 is an equidigital number, since it uses as much as digits as its factorization.

53989847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 53.

The square root of 53989847 is about 7347.7783717257. The cubic root of 53989847 is about 377.9526246347.

The spelling of 53989847 in words is "fifty-three million, nine hundred eighty-nine thousand, eight hundred forty-seven".