47994136 has 8 divisors (see below), whose sum is σ = 89989020. Its totient is φ = 23997064.

The previous prime is 47994127. The next prime is 47994137. The reversal of 47994136 is 63149974.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 47994092 and 47994101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47994137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2999626 + ... + 2999641.

Almost surely, 2^47994136 is an apocalyptic number.

It is an amenable number.

47994136 is a deficient number, since it is larger than the sum of its proper divisors (41994884).

47994136 is a wasteful number, since it uses less digits than its factorization.

47994136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5999273 (or 5999269 counting only the distinct ones).

The product of its digits is 163296, while the sum is 43.

The square root of 47994136 is about 6927.7800196022. The cubic root of 47994136 is about 363.4093185260.

The spelling of 47994136 in words is "forty-seven million, nine hundred ninety-four thousand, one hundred thirty-six".