47693990 has 32 divisors (see below), whose sum is σ = 90789120. Its totient is φ = 17989344.

The previous prime is 47693983. The next prime is 47694071. The reversal of 47693990 is 9939674.

47693990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53327 + ... + 54213.

It is an arithmetic number, because the mean of its divisors is an integer number (2837160).

Almost surely, 2^47693990 is an apocalyptic number.

47693990 is a deficient number, since it is larger than the sum of its proper divisors (43095130).

47693990 is a wasteful number, since it uses less digits than its factorization.

47693990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 47693990 is about 6906.0835500304. The cubic root of 47693990 is about 362.6501700448.

The spelling of 47693990 in words is "forty-seven million, six hundred ninety-three thousand, nine hundred ninety".