47827720 has 16 divisors (see below), whose sum is σ = 107612460. Its totient is φ = 19131072.

The previous prime is 47827711. The next prime is 47827727. The reversal of 47827720 is 2772874.

It can be written as a sum of positive squares in 2 ways, for example, as 46430596 + 1397124 = 6814^2 + 1182^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47827720.

It is not an unprimeable number, because it can be changed into a prime (47827727) 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, 597807 + ... + 597886.

Almost surely, 2^47827720 is an apocalyptic number.

47827720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47827720 is an abundant number, since it is smaller than the sum of its proper divisors (59784740).

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

47827720 is a wasteful number, since it uses less digits than its factorization.

47827720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195704 (or 1195700 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 37.

The square root of 47827720 is about 6915.7588159218. The cubic root of 47827720 is about 362.9888007635.

The spelling of 47827720 in words is "forty-seven million, eight hundred twenty-seven thousand, seven hundred twenty".