47499818 has 8 divisors (see below), whose sum is σ = 71770212. Its totient is φ = 23576416.

The previous prime is 47499817. The next prime is 47499827. The reversal of 47499818 is 81899474.

It can be written as a sum of positive squares in 2 ways, for example, as 44930209 + 2569609 = 6703^2 + 1603^2 .

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

It is not an unprimeable number, because it can be changed into a prime (47499817) 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, 86405 + ... + 86952.

Almost surely, 2^47499818 is an apocalyptic number.

47499818 is a deficient number, since it is larger than the sum of its proper divisors (24270394).

47499818 is a wasteful number, since it uses less digits than its factorization.

47499818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173496.

The product of its digits is 580608, while the sum is 50.

The square root of 47499818 is about 6892.0111723647. The cubic root of 47499818 is about 362.1573596261.

The spelling of 47499818 in words is "forty-seven million, four hundred ninety-nine thousand, eight hundred eighteen".