8752639 has 8 divisors (see below), whose sum is σ = 10247328. Its totient is φ = 7319040.

The previous prime is 8752619. The next prime is 8752643. The reversal of 8752639 is 9362578.

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

It is a cyclic number.

It is not a de Polignac number, because 8752639 - 2⁷ = 8752511 is a prime.

8752639 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8752619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14962 + ... + 15535.

It is an arithmetic number, because the mean of its divisors is an integer number (1280916).

Almost surely, 2^8752639 is an apocalyptic number.

8752639 is a deficient number, since it is larger than the sum of its proper divisors (1494689).

8752639 is a wasteful number, since it uses less digits than its factorization.

8752639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30545.

The product of its digits is 90720, while the sum is 40.

The square root of 8752639 is about 2958.4859303367. The cubic root of 8752639 is about 206.0849792355.

The spelling of 8752639 in words is "eight million, seven hundred fifty-two thousand, six hundred thirty-nine".