47993480 has 32 divisors (see below), whose sum is σ = 108604800. Its totient is φ = 19087296.

The previous prime is 47993467. The next prime is 47993489. The reversal of 47993480 is 8439974.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (47993489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3809 + ... + 10511.

It is an arithmetic number, because the mean of its divisors is an integer number (3393900).

Almost surely, 2^47993480 is an apocalyptic number.

47993480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47993480 is an abundant number, since it is smaller than the sum of its proper divisors (60611320).

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

47993480 is a wasteful number, since it uses less digits than its factorization.

47993480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6893 (or 6889 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 47993480 is about 6927.7326738263. The cubic root of 47993480 is about 363.4076627848.

The spelling of 47993480 in words is "forty-seven million, nine hundred ninety-three thousand, four hundred eighty".