4921739 has 4 divisors (see below), whose sum is σ = 5014656. Its totient is φ = 4828824.

The previous prime is 4921717. The next prime is 4921757. The reversal of 4921739 is 9371294.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4921739 is a prime.

It is a d-powerful number, because it can be written as 4³ + 9³ + 2¹⁷ + 1 + 7³ + 3¹⁴ + 9⁴ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4921699 and 4921708.

It is not an unprimeable number, because it can be changed into a prime (4921759) 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 in 3 ways as a sum of consecutive naturals, for example, 46379 + ... + 46484.

It is an arithmetic number, because the mean of its divisors is an integer number (1253664).

Almost surely, 2^4921739 is an apocalyptic number.

4921739 is a deficient number, since it is larger than the sum of its proper divisors (92917).

4921739 is an equidigital number, since it uses as much as digits as its factorization.

4921739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92916.

The product of its digits is 13608, while the sum is 35.

The square root of 4921739 is about 2218.4992675230. The cubic root of 4921739 is about 170.1007361432.

The spelling of 4921739 in words is "four million, nine hundred twenty-one thousand, seven hundred thirty-nine".