47973870 has 80 divisors (see below), whose sum is σ = 147441888. Its totient is φ = 10964160.

The previous prime is 47973857. The next prime is 47973901. The reversal of 47973870 is 7837974.

It is a Smith number, since the sum of its digits (45) 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 (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1440 + ... + 9900.

Almost surely, 2^47973870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47973870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73720944).

47973870 is an abundant number, since it is smaller than the sum of its proper divisors (99468018).

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

47973870 is a wasteful number, since it uses less digits than its factorization.

47973870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8487 (or 8478 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 47973870 is about 6926.3172032473. The cubic root of 47973870 is about 363.3581602614.

The spelling of 47973870 in words is "forty-seven million, nine hundred seventy-three thousand, eight hundred seventy".