47978006 has 16 divisors (see below), whose sum is σ = 74615040. Its totient is φ = 23110080.

The previous prime is 47978003. The next prime is 47978017. The reversal of 47978006 is 60087974.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47978003) 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, 43595 + ... + 44681.

It is an arithmetic number, because the mean of its divisors is an integer number (4663440).

Almost surely, 2^47978006 is an apocalyptic number.

47978006 is a deficient number, since it is larger than the sum of its proper divisors (26637034).

47978006 is a wasteful number, since it uses less digits than its factorization.

47978006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 47978006 is about 6926.6157681800. The cubic root of 47978006 is about 363.3686020996.

The spelling of 47978006 in words is "forty-seven million, nine hundred seventy-eight thousand, six".