47687442 has 16 divisors (see below), whose sum is σ = 104045472. Its totient is φ = 14450720.

The previous prime is 47687429. The next prime is 47687449. The reversal of 47687442 is 24478674.

It is a junction number, because it is equal to n+sod(n) for n = 47687394 and 47687403.

It is not an unprimeable number, because it can be changed into a prime (47687449) 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, 361203 + ... + 361334.

It is an arithmetic number, because the mean of its divisors is an integer number (6502842).

Almost surely, 2^47687442 is an apocalyptic number.

47687442 is an abundant number, since it is smaller than the sum of its proper divisors (56358030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47687442 is a wasteful number, since it uses less digits than its factorization.

47687442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722553.

The product of its digits is 301056, while the sum is 42.

The square root of 47687442 is about 6905.6094589833. The cubic root of 47687442 is about 362.6335729712.

The spelling of 47687442 in words is "forty-seven million, six hundred eighty-seven thousand, four hundred forty-two".