4997939 has 4 divisors (see below), whose sum is σ = 5007624. Its totient is φ = 4988256.

The previous prime is 4997929. The next prime is 4997981. The reversal of 4997939 is 9397994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4997939 - 2⁸ = 4997683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4997929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4022 + ... + 5115.

It is an arithmetic number, because the mean of its divisors is an integer number (1251906).

Almost surely, 2^4997939 is an apocalyptic number.

4997939 is a deficient number, since it is larger than the sum of its proper divisors (9685).

4997939 is an equidigital number, since it uses as much as digits as its factorization.

4997939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9684.

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

The square root of 4997939 is about 2235.6070763889. The cubic root of 4997939 is about 170.9740963692.

The spelling of 4997939 in words is "four million, nine hundred ninety-seven thousand, nine hundred thirty-nine".