52647691 has 8 divisors (see below), whose sum is σ = 55890864. Its totient is φ = 49420800.

The previous prime is 52647671. The next prime is 52647719. The reversal of 52647691 is 19674625.

52647691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52647691 - 2¹⁵ = 52614923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52647611) 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, 2956 + ... + 10678.

It is an arithmetic number, because the mean of its divisors is an integer number (6986358).

Almost surely, 2^52647691 is an apocalyptic number.

52647691 is a deficient number, since it is larger than the sum of its proper divisors (3243173).

52647691 is a wasteful number, since it uses less digits than its factorization.

52647691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8141.

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

The square root of 52647691 is about 7255.8728627230. The cubic root of 52647691 is about 374.7944141273.

The spelling of 52647691 in words is "fifty-two million, six hundred forty-seven thousand, six hundred ninety-one".