4765639 has 4 divisors (see below), whose sum is σ = 4778280. Its totient is φ = 4753000.

The previous prime is 4765633. The next prime is 4765667. The reversal of 4765639 is 9365674.

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 4765639 - 2⁷ = 4765511 is a prime.

It is a super-2 number, since 2×4765639² = 45422630156642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4765633) 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 3 ways as a sum of consecutive naturals, for example, 5737 + ... + 6514.

It is an arithmetic number, because the mean of its divisors is an integer number (1194570).

Almost surely, 2^4765639 is an apocalyptic number.

4765639 is a deficient number, since it is larger than the sum of its proper divisors (12641).

4765639 is a wasteful number, since it uses less digits than its factorization.

4765639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12640.

The product of its digits is 136080, while the sum is 40.

The square root of 4765639 is about 2183.0343561199. The cubic root of 4765639 is about 168.2830522200.

The spelling of 4765639 in words is "four million, seven hundred sixty-five thousand, six hundred thirty-nine".