4861957 has 2 divisors, whose sum is σ = 4861958. Its totient is φ = 4861956.

The previous prime is 4861951. The next prime is 4861979. The reversal of 4861957 is 7591684.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3682561 + 1179396 = 1919^2 + 1086^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4861957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4861951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2430978 + 2430979.

It is an arithmetic number, because the mean of its divisors is an integer number (2430979).

Almost surely, 2^4861957 is an apocalyptic number.

It is an amenable number.

4861957 is a deficient number, since it is larger than the sum of its proper divisors (1).

4861957 is an equidigital number, since it uses as much as digits as its factorization.

4861957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 4861957 is about 2204.9845804450. The cubic root of 4861957 is about 169.4092180427.

The spelling of 4861957 in words is "four million, eight hundred sixty-one thousand, nine hundred fifty-seven".