4944991 has 2 divisors, whose sum is σ = 4944992. Its totient is φ = 4944990.

The previous prime is 4944983. The next prime is 4945001. The reversal of 4944991 is 1994494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4944991 - 2³ = 4944983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4944911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2472495 + 2472496.

It is an arithmetic number, because the mean of its divisors is an integer number (2472496).

Almost surely, 2^4944991 is an apocalyptic number.

4944991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4944991 is an equidigital number, since it uses as much as digits as its factorization.

4944991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The square root of 4944991 is about 2223.7335721709. The cubic root of 4944991 is about 170.3681870085.

The spelling of 4944991 in words is "four million, nine hundred forty-four thousand, nine hundred ninety-one".