47893720 has 32 divisors (see below), whose sum is σ = 123156000. Its totient is φ = 16420608.

The previous prime is 47893711. The next prime is 47893721. The reversal of 47893720 is 2739874.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47893721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85245 + ... + 85804.

It is an arithmetic number, because the mean of its divisors is an integer number (3848625).

Almost surely, 2^47893720 is an apocalyptic number.

47893720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47893720 is an abundant number, since it is smaller than the sum of its proper divisors (75262280).

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

47893720 is a wasteful number, since it uses less digits than its factorization.

47893720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171067 (or 171063 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 47893720 is about 6920.5288815234. The cubic root of 47893720 is about 363.1556931663.

The spelling of 47893720 in words is "forty-seven million, eight hundred ninety-three thousand, seven hundred twenty".