47921118 has 24 divisors (see below), whose sum is σ = 111490632. Its totient is φ = 13691664.

The previous prime is 47921117. The next prime is 47921119. The reversal of 47921118 is 81112974.

It is an interprime number because it is at equal distance from previous prime (47921117) and next prime (47921119).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47921117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81205 + ... + 81792.

It is an arithmetic number, because the mean of its divisors is an integer number (4645443).

Almost surely, 2^47921118 is an apocalyptic number.

47921118 is an abundant number, since it is smaller than the sum of its proper divisors (63569514).

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

47921118 is a wasteful number, since it uses less digits than its factorization.

47921118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163016 (or 163009 counting only the distinct ones).

The product of its digits is 4032, while the sum is 33.

The square root of 47921118 is about 6922.5080715013. The cubic root of 47921118 is about 363.2249287084.

The spelling of 47921118 in words is "forty-seven million, nine hundred twenty-one thousand, one hundred eighteen".