4861979 has 2 divisors, whose sum is σ = 4861980. Its totient is φ = 4861978.

The previous prime is 4861957. The next prime is 4861991. The reversal of 4861979 is 9791684.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4861979 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4861939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2430989 + 2430990.

It is an arithmetic number, because the mean of its divisors is an integer number (2430990).

Almost surely, 2^4861979 is an apocalyptic number.

4861979 is a deficient number, since it is larger than the sum of its proper divisors (1).

4861979 is an equidigital number, since it uses as much as digits as its factorization.

4861979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 44.

The square root of 4861979 is about 2204.9895691363. The cubic root of 4861979 is about 169.4094735638.

The spelling of 4861979 in words is "four million, eight hundred sixty-one thousand, nine hundred seventy-nine".