47920780 has 12 divisors (see below), whose sum is σ = 100633680. Its totient is φ = 19168304.

The previous prime is 47920771. The next prime is 47920787. The reversal of 47920780 is 8702974.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (47920787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1198000 + ... + 1198039.

It is an arithmetic number, because the mean of its divisors is an integer number (8386140).

Almost surely, 2^47920780 is an apocalyptic number.

It is an amenable number.

47920780 is an abundant number, since it is smaller than the sum of its proper divisors (52712900).

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

47920780 is a wasteful number, since it uses less digits than its factorization.

47920780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396048 (or 2396046 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 47920780 is about 6922.4836583411. The cubic root of 47920780 is about 363.2240747334.

The spelling of 47920780 in words is "forty-seven million, nine hundred twenty thousand, seven hundred eighty".