47383815 has 16 divisors (see below), whose sum is σ = 79804800. Its totient is φ = 23941152.

The previous prime is 47383813. The next prime is 47383837. The reversal of 47383815 is 51838374.

It is not a de Polignac number, because 47383815 - 2¹ = 47383813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47383813) 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 15 ways as a sum of consecutive naturals, for example, 82845 + ... + 83414.

It is an arithmetic number, because the mean of its divisors is an integer number (4987800).

Almost surely, 2^47383815 is an apocalyptic number.

47383815 is a deficient number, since it is larger than the sum of its proper divisors (32420985).

47383815 is a wasteful number, since it uses less digits than its factorization.

47383815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166286.

The product of its digits is 80640, while the sum is 39.

The square root of 47383815 is about 6883.5902696195. The cubic root of 47383815 is about 361.8623017490.

The spelling of 47383815 in words is "forty-seven million, three hundred eighty-three thousand, eight hundred fifteen".