47667747 has 4 divisors (see below), whose sum is σ = 63557000. Its totient is φ = 31778496.

The previous prime is 47667743. The next prime is 47667749. The reversal of 47667747 is 74776674.

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

It is not a de Polignac number, because 47667747 - 2² = 47667743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47667696 and 47667705.

It is not an unprimeable number, because it can be changed into a prime (47667743) 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, 7944622 + ... + 7944627.

It is an arithmetic number, because the mean of its divisors is an integer number (15889250).

Almost surely, 2^47667747 is an apocalyptic number.

47667747 is a deficient number, since it is larger than the sum of its proper divisors (15889253).

47667747 is a wasteful number, since it uses less digits than its factorization.

47667747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15889252.

The product of its digits is 1382976, while the sum is 48.

The square root of 47667747 is about 6904.1832971033. The cubic root of 47667747 is about 362.5836433225.

The spelling of 47667747 in words is "forty-seven million, six hundred sixty-seven thousand, seven hundred forty-seven".