4939657 has 8 divisors (see below), whose sum is σ = 5198400. Its totient is φ = 4686864.

The previous prime is 4939637. The next prime is 4939661. The reversal of 4939657 is 7569394.

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

It is a de Polignac number, because none of the positive numbers 2^k-4939657 is a prime.

It is a super-2 number, since 2×4939657² = 48800422555298, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4⁷ + 9⁴ + 3¹⁴ + 9⁴ + 6⁶ + 5⁷ + 7⁴ .

It is a Duffinian number.

4939657 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4939637) by changing a digit.

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, 268 + ... + 3154.

It is an arithmetic number, because the mean of its divisors is an integer number (649800).

Almost surely, 2^4939657 is an apocalyptic number.

It is an amenable number.

4939657 is a deficient number, since it is larger than the sum of its proper divisors (258743).

4939657 is a wasteful number, since it uses less digits than its factorization.

4939657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975.

The product of its digits is 204120, while the sum is 43.

The square root of 4939657 is about 2222.5339142519. The cubic root of 4939657 is about 170.3069081070.

The spelling of 4939657 in words is "four million, nine hundred thirty-nine thousand, six hundred fifty-seven".