4998997 has 2 divisors, whose sum is σ = 4998998. Its totient is φ = 4998996.

The previous prime is 4998989. The next prime is 4999021. The reversal of 4998997 is 7998994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3845521 + 1153476 = 1961^2 + 1074^2 .

It is a cyclic number.

It is not a de Polignac number, because 4998997 - 2³ = 4998989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4998947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2499498 + 2499499.

It is an arithmetic number, because the mean of its divisors is an integer number (2499499).

Almost surely, 2^4998997 is an apocalyptic number.

It is an amenable number.

4998997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4998997 is an equidigital number, since it uses as much as digits as its factorization.

4998997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 55.

The square root of 4998997 is about 2235.8436886330. The cubic root of 4998997 is about 170.9861598639.

It can be divided in two parts, 49989 and 97, that added together give a triangular number (50086 = T₃₁₆).

The spelling of 4998997 in words is "four million, nine hundred ninety-eight thousand, nine hundred ninety-seven".