47442667 has 4 divisors (see below), whose sum is σ = 48246840. Its totient is φ = 46638496.

The previous prime is 47442649. The next prime is 47442673. The reversal of 47442667 is 76624474.

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 47442667 - 2¹¹ = 47440619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47442167) 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, 401998 + ... + 402115.

It is an arithmetic number, because the mean of its divisors is an integer number (12061710).

Almost surely, 2^47442667 is an apocalyptic number.

47442667 is a deficient number, since it is larger than the sum of its proper divisors (804173).

47442667 is an equidigital number, since it uses as much as digits as its factorization.

47442667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804172.

The product of its digits is 225792, while the sum is 40.

The square root of 47442667 is about 6887.8637472006. The cubic root of 47442667 is about 362.0120540740.

The spelling of 47442667 in words is "forty-seven million, four hundred forty-two thousand, six hundred sixty-seven".