53688679 has 4 divisors (see below), whose sum is σ = 58569480. Its totient is φ = 48807880.

The previous prime is 53688659. The next prime is 53688697. The reversal of 53688679 is 97688635.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 53688679 - 2¹⁷ = 53557607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53688619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2440384 + ... + 2440405.

It is an arithmetic number, because the mean of its divisors is an integer number (14642370).

Almost surely, 2^53688679 is an apocalyptic number.

53688679 is a deficient number, since it is larger than the sum of its proper divisors (4880801).

53688679 is a wasteful number, since it uses less digits than its factorization.

53688679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4880800.

The product of its digits is 2177280, while the sum is 52.

The square root of 53688679 is about 7327.2558983565. The cubic root of 53688679 is about 377.2485444394.

The spelling of 53688679 in words is "fifty-three million, six hundred eighty-eight thousand, six hundred seventy-nine".