47451667 has 4 divisors (see below), whose sum is σ = 47557800. Its totient is φ = 47345536.

The previous prime is 47451659. The next prime is 47451671. The reversal of 47451667 is 76615474.

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 47451667 - 2³ = 47451659 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47451617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52393 + ... + 53290.

It is an arithmetic number, because the mean of its divisors is an integer number (11889450).

Almost surely, 2^47451667 is an apocalyptic number.

47451667 is a deficient number, since it is larger than the sum of its proper divisors (106133).

47451667 is a wasteful number, since it uses less digits than its factorization.

47451667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106132.

The product of its digits is 141120, while the sum is 40.

The square root of 47451667 is about 6888.5170392473. The cubic root of 47451667 is about 362.0349441761.

The spelling of 47451667 in words is "forty-seven million, four hundred fifty-one thousand, six hundred sixty-seven".