4939997 has 2 divisors, whose sum is σ = 4939998. Its totient is φ = 4939996.

The previous prime is 4939993. The next prime is 4940017. The reversal of 4939997 is 7999394.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3147076 + 1792921 = 1774^2 + 1339^2 .

It is a cyclic number.

It is not a de Polignac number, because 4939997 - 2² = 4939993 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4939993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2469998 + 2469999.

It is an arithmetic number, because the mean of its divisors is an integer number (2469999).

Almost surely, 2^4939997 is an apocalyptic number.

It is an amenable number.

4939997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4939997 is an equidigital number, since it uses as much as digits as its factorization.

4939997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 551124, while the sum is 50.

The square root of 4939997 is about 2222.6104022073. The cubic root of 4939997 is about 170.3108154646.

The spelling of 4939997 in words is "four million, nine hundred thirty-nine thousand, nine hundred ninety-seven".