52639843 has 8 divisors (see below), whose sum is σ = 54550080. Its totient is φ = 50736000.

The previous prime is 52639831. The next prime is 52639877. The reversal of 52639843 is 34893625.

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 52639843 - 2⁹ = 52639331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52639796 and 52639805.

It is not an unprimeable number, because it can be changed into a prime (52639883) 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, 20571 + ... + 22987.

It is an arithmetic number, because the mean of its divisors is an integer number (6818760).

Almost surely, 2^52639843 is an apocalyptic number.

52639843 is a deficient number, since it is larger than the sum of its proper divisors (1910237).

52639843 is a wasteful number, since it uses less digits than its factorization.

52639843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197.

The product of its digits is 155520, while the sum is 40.

The square root of 52639843 is about 7255.3320392660. The cubic root of 52639843 is about 374.7757901213.

The spelling of 52639843 in words is "fifty-two million, six hundred thirty-nine thousand, eight hundred forty-three".