47320618 has 8 divisors (see below), whose sum is σ = 71026560. Its totient is φ = 23645100.

The previous prime is 47320589. The next prime is 47320627. The reversal of 47320618 is 81602374.

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

It is a self number, because there is not a number n which added to its sum of digits gives 47320618.

It is an unprimeable number.

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, 3208 + ... + 10243.

It is an arithmetic number, because the mean of its divisors is an integer number (8878320).

Almost surely, 2^47320618 is an apocalyptic number.

47320618 is a deficient number, since it is larger than the sum of its proper divisors (23705942).

47320618 is a wasteful number, since it uses less digits than its factorization.

47320618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15212.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 47320618 is about 6878.9983282452. The cubic root of 47320618 is about 361.7013551878.

The spelling of 47320618 in words is "forty-seven million, three hundred twenty thousand, six hundred eighteen".