4939405 has 8 divisors (see below), whose sum is σ = 5986584. Its totient is φ = 3912000.

The previous prime is 4939391. The next prime is 4939423. The reversal of 4939405 is 5049394.

It can be written as a sum of positive squares in 4 ways, for example, as 1483524 + 3455881 = 1218^2 + 1859^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4939405 - 2¹⁵ = 4906637 is a prime.

It is a Duffinian number.

4939405 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4386 + ... + 5395.

It is an arithmetic number, because the mean of its divisors is an integer number (748323).

Almost surely, 2^4939405 is an apocalyptic number.

It is an amenable number.

4939405 is a deficient number, since it is larger than the sum of its proper divisors (1047179).

4939405 is a wasteful number, since it uses less digits than its factorization.

4939405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9887.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 4939405 is about 2222.4772214806. The cubic root of 4939405 is about 170.3040119497.

The spelling of 4939405 in words is "four million, nine hundred thirty-nine thousand, four hundred five".