47816645 has 8 divisors (see below), whose sum is σ = 58714656. Its totient is φ = 37363536.

The previous prime is 47816641. The next prime is 47816647. The reversal of 47816645 is 54661874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47816645 - 2² = 47816641 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47816641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110987 + ... + 111416.

It is an arithmetic number, because the mean of its divisors is an integer number (7339332).

Almost surely, 2^47816645 is an apocalyptic number.

It is an amenable number.

47816645 is a deficient number, since it is larger than the sum of its proper divisors (10898011).

47816645 is a wasteful number, since it uses less digits than its factorization.

47816645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222451.

The product of its digits is 161280, while the sum is 41.

The square root of 47816645 is about 6914.9580620565. The cubic root of 47816645 is about 362.9607806718.

The spelling of 47816645 in words is "forty-seven million, eight hundred sixteen thousand, six hundred forty-five".