47477994 has 8 divisors (see below), whose sum is σ = 94956000. Its totient is φ = 15825996.

The previous prime is 47477987. The next prime is 47478007. The reversal of 47477994 is 49977474.

It is a sphenic number, since it is the product of 3 distinct primes.

47477994 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3956494 + ... + 3956505.

It is an arithmetic number, because the mean of its divisors is an integer number (11869500).

Almost surely, 2^47477994 is an apocalyptic number.

47477994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47477994 is a wasteful number, since it uses less digits than its factorization.

47477994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7913004.

The product of its digits is 1778112, while the sum is 51.

The square root of 47477994 is about 6890.4277080599. The cubic root of 47477994 is about 362.1018861995.

The spelling of 47477994 in words is "forty-seven million, four hundred seventy-seven thousand, nine hundred ninety-four".