4697639 has 4 divisors (see below), whose sum is σ = 4777320. Its totient is φ = 4617960.

The previous prime is 4697633. The next prime is 4697659. The reversal of 4697639 is 9367964.

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 4697639 - 2⁸ = 4697383 is a prime.

It is a super-4 number, since 4×4697639⁴ (a number of 28 digits) contains 4444 as substring.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 4697639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4697633) 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, 39752 + ... + 39869.

It is an arithmetic number, because the mean of its divisors is an integer number (1194330).

Almost surely, 2^4697639 is an apocalyptic number.

4697639 is a deficient number, since it is larger than the sum of its proper divisors (79681).

4697639 is an equidigital number, since it uses as much as digits as its factorization.

4697639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79680.

The product of its digits is 244944, while the sum is 44.

The square root of 4697639 is about 2167.4037464210. The cubic root of 4697639 is about 167.4788151718.

The spelling of 4697639 in words is "four million, six hundred ninety-seven thousand, six hundred thirty-nine".