4861939 has 2 divisors, whose sum is σ = 4861940. Its totient is φ = 4861938.

The previous prime is 4861921. The next prime is 4861943. The reversal of 4861939 is 9391684.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4861939 - 2⁵ = 4861907 is a prime.

It is not a weakly prime, because it can be changed into another prime (4861979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2430969 + 2430970.

It is an arithmetic number, because the mean of its divisors is an integer number (2430970).

Almost surely, 2^4861939 is an apocalyptic number.

4861939 is a deficient number, since it is larger than the sum of its proper divisors (1).

4861939 is an equidigital number, since it uses as much as digits as its factorization.

4861939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The square root of 4861939 is about 2204.9804987800. The cubic root of 4861939 is about 169.4090089795.

The spelling of 4861939 in words is "four million, eight hundred sixty-one thousand, nine hundred thirty-nine".