47247680 has 84 divisors (see below), whose sum is σ = 119032020. Its totient is φ = 17860608.

The previous prime is 47247659. The next prime is 47247691. The reversal of 47247680 is 8674274.

It can be written as a sum of positive squares in 2 ways, for example, as 31629376 + 15618304 = 5624^2 + 3952^2 .

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115316 + ... + 115724.

Almost surely, 2^47247680 is an apocalyptic number.

47247680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47247680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59516010).

47247680 is an abundant number, since it is smaller than the sum of its proper divisors (71784340).

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

47247680 is a wasteful number, since it uses less digits than its factorization.

47247680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 47247680 is about 6873.6947851938. The cubic root of 47247680 is about 361.5154225664.

The spelling of 47247680 in words is "forty-seven million, two hundred forty-seven thousand, six hundred eighty".