47720970 has 192 divisors, whose sum is σ = 148262400. Its totient is φ = 10523520.

The previous prime is 47720969. The next prime is 47721031. The reversal of 47720970 is 7902774.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 808801 + ... + 808859.

It is an arithmetic number, because the mean of its divisors is an integer number (772200).

Almost surely, 2^47720970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47720970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74131200).

47720970 is an abundant number, since it is smaller than the sum of its proper divisors (100541430).

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

47720970 is a wasteful number, since it uses less digits than its factorization.

47720970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 47720970 is about 6908.0366241067. The cubic root of 47720970 is about 362.7185396459.

The spelling of 47720970 in words is "forty-seven million, seven hundred twenty thousand, nine hundred seventy".