47681207 has 4 divisors (see below), whose sum is σ = 54492816. Its totient is φ = 40869600.

The previous prime is 47681189. The next prime is 47681219. The reversal of 47681207 is 70218674.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47681207 - 2¹² = 47677111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47681807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3405794 + ... + 3405807.

It is an arithmetic number, because the mean of its divisors is an integer number (13623204).

Almost surely, 2^47681207 is an apocalyptic number.

47681207 is a deficient number, since it is larger than the sum of its proper divisors (6811609).

47681207 is an equidigital number, since it uses as much as digits as its factorization.

47681207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6811608.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 47681207 is about 6905.1579996406. The cubic root of 47681207 is about 362.6177678397.

The spelling of 47681207 in words is "forty-seven million, six hundred eighty-one thousand, two hundred seven".