4951997 has 2 divisors, whose sum is σ = 4951998. Its totient is φ = 4951996.

The previous prime is 4951987. The next prime is 4952023. The reversal of 4951997 is 7991594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3728761 + 1223236 = 1931^2 + 1106^2 .

It is a cyclic number.

It is not a de Polignac number, because 4951997 - 2⁸ = 4951741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4951907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2475998 + 2475999.

It is an arithmetic number, because the mean of its divisors is an integer number (2475999).

Almost surely, 2^4951997 is an apocalyptic number.

It is an amenable number.

4951997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4951997 is an equidigital number, since it uses as much as digits as its factorization.

4951997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 44.

The square root of 4951997 is about 2225.3082932484. The cubic root of 4951997 is about 170.4486075303.

The spelling of 4951997 in words is "four million, nine hundred fifty-one thousand, nine hundred ninety-seven".