47874818 has 8 divisors (see below), whose sum is σ = 73753212. Its totient is φ = 23290416.

The previous prime is 47874817. The next prime is 47874829. The reversal of 47874818 is 81847874.

It can be written as a sum of positive squares in 2 ways, for example, as 47844889 + 29929 = 6917^2 + 173^2 .

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

It is a super-3 number, since 3×47874818³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (47874817) 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, 323405 + ... + 323552.

Almost surely, 2^47874818 is an apocalyptic number.

47874818 is a deficient number, since it is larger than the sum of its proper divisors (25878394).

47874818 is a wasteful number, since it uses less digits than its factorization.

47874818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646996.

The product of its digits is 401408, while the sum is 47.

The square root of 47874818 is about 6919.1630996819. The cubic root of 47874818 is about 363.1079118694.

The spelling of 47874818 in words is "forty-seven million, eight hundred seventy-four thousand, eight hundred eighteen".