3885247 has 2 divisors, whose sum is σ = 3885248. Its totient is φ = 3885246.

The previous prime is 3885241. The next prime is 3885251. The reversal of 3885247 is 7425883.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3885247 is a prime.

3885247 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3885241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1942623 + 1942624.

It is an arithmetic number, because the mean of its divisors is an integer number (1942624).

Almost surely, 2^3885247 is an apocalyptic number.

3885247 is a deficient number, since it is larger than the sum of its proper divisors (1).

3885247 is an equidigital number, since it uses as much as digits as its factorization.

3885247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 37.

The square root of 3885247 is about 1971.1029907136. The cubic root of 3885247 is about 157.2073612007.

The spelling of 3885247 in words is "three million, eight hundred eighty-five thousand, two hundred forty-seven".