47430687 has 4 divisors (see below), whose sum is σ = 63240920. Its totient is φ = 31620456.

The previous prime is 47430683. The next prime is 47430703. The reversal of 47430687 is 78603474.

It is a happy number.

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

It is not a de Polignac number, because 47430687 - 2² = 47430683 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 (47430683) 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, 7905112 + ... + 7905117.

It is an arithmetic number, because the mean of its divisors is an integer number (15810230).

Almost surely, 2^47430687 is an apocalyptic number.

47430687 is a deficient number, since it is larger than the sum of its proper divisors (15810233).

47430687 is a wasteful number, since it uses less digits than its factorization.

47430687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15810232.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 47430687 is about 6886.9940467522. The cubic root of 47430687 is about 361.9815803128.

The spelling of 47430687 in words is "forty-seven million, four hundred thirty thousand, six hundred eighty-seven".