47687623 has 4 divisors (see below), whose sum is σ = 47963448. Its totient is φ = 47411800.

The previous prime is 47687617. The next prime is 47687659. The reversal of 47687623 is 32678674.

It is a happy number.

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 47687623 - 2⁹ = 47687111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47687623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47687683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137653 + ... + 137998.

It is an arithmetic number, because the mean of its divisors is an integer number (11990862).

Almost surely, 2^47687623 is an apocalyptic number.

47687623 is a deficient number, since it is larger than the sum of its proper divisors (275825).

47687623 is a wasteful number, since it uses less digits than its factorization.

47687623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275824.

The product of its digits is 338688, while the sum is 43.

The square root of 47687623 is about 6905.6225642588. The cubic root of 47687623 is about 362.6340317684.

The spelling of 47687623 in words is "forty-seven million, six hundred eighty-seven thousand, six hundred twenty-three".