47513780 has 24 divisors (see below), whose sum is σ = 99950760. Its totient is φ = 18972800.

The previous prime is 47513779. The next prime is 47513783. The reversal of 47513780 is 8731574.

It can be written as a sum of positive squares in 4 ways, for example, as 25928464 + 21585316 = 5092^2 + 4646^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47513780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47513783) 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, 12326 + ... + 15714.

It is an arithmetic number, because the mean of its divisors is an integer number (4164615).

Almost surely, 2^47513780 is an apocalyptic number.

It is an amenable number.

47513780 is an abundant number, since it is smaller than the sum of its proper divisors (52436980).

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

47513780 is a wasteful number, since it uses less digits than its factorization.

47513780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099 (or 4097 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 47513780 is about 6893.0240098233. The cubic root of 47513780 is about 362.1928400828.

The spelling of 47513780 in words is "forty-seven million, five hundred thirteen thousand, seven hundred eighty".