47603681 has 4 divisors (see below), whose sum is σ = 47673264. Its totient is φ = 47534100.

The previous prime is 47603663. The next prime is 47603687. The reversal of 47603681 is 18630674.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47603681 - 2⁶ = 47603617 is a prime.

It is a super-2 number, since 2×47603681² = 4532220889499522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47603687) 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, 33755 + ... + 35136.

It is an arithmetic number, because the mean of its divisors is an integer number (11918316).

Almost surely, 2^47603681 is an apocalyptic number.

It is an amenable number.

47603681 is a deficient number, since it is larger than the sum of its proper divisors (69583).

47603681 is an equidigital number, since it uses as much as digits as its factorization.

47603681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69582.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 47603681 is about 6899.5420862547. The cubic root of 47603681 is about 362.4211316331.

It can be divided in two parts, 47603 and 681, that added together give a palindrome (48284).

The spelling of 47603681 in words is "forty-seven million, six hundred three thousand, six hundred eighty-one".