47572681 has 8 divisors (see below), whose sum is σ = 54246024. Its totient is φ = 41329920.

The previous prime is 47572643. The next prime is 47572687. The reversal of 47572681 is 18627574.

It can be written as a sum of positive squares in 4 ways, for example, as 1550025 + 46022656 = 1245^2 + 6784^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47572681 - 2¹⁵ = 47539913 is a prime.

It is a super-2 number, since 2×47572681² = 4526319955055522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47572687) 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, 107410 + ... + 107851.

It is an arithmetic number, because the mean of its divisors is an integer number (6780753).

Almost surely, 2^47572681 is an apocalyptic number.

It is an amenable number.

47572681 is a deficient number, since it is larger than the sum of its proper divisors (6673343).

47572681 is a wasteful number, since it uses less digits than its factorization.

47572681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215291.

The product of its digits is 94080, while the sum is 40.

The square root of 47572681 is about 6897.2951944947. The cubic root of 47572681 is about 362.3424437773.

The spelling of 47572681 in words is "forty-seven million, five hundred seventy-two thousand, six hundred eighty-one".