47640782 has 8 divisors (see below), whose sum is σ = 81669936. Its totient is φ = 20417472.

The previous prime is 47640773. The next prime is 47640821. The reversal of 47640782 is 28704674.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1701443 + ... + 1701470.

It is an arithmetic number, because the mean of its divisors is an integer number (10208742).

Almost surely, 2^47640782 is an apocalyptic number.

47640782 is a deficient number, since it is larger than the sum of its proper divisors (34029154).

47640782 is a wasteful number, since it uses less digits than its factorization.

47640782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402922.

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 47640782 is about 6902.2302192842. The cubic root of 47640782 is about 362.5152608716.

The spelling of 47640782 in words is "forty-seven million, six hundred forty thousand, seven hundred eighty-two".