47389971 has 16 divisors (see below), whose sum is σ = 67510400. Its totient is φ = 29481408.

The previous prime is 47389961. The next prime is 47389981. The reversal of 47389971 is 17998374.

47389971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (47389961) and next prime (47389981).

It is not a de Polignac number, because 47389971 - 2¹⁸ = 47127827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47389971.

It is not an unprimeable number, because it can be changed into a prime (47389961) by changing a digit.

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, 2386 + ... + 10023.

It is an arithmetic number, because the mean of its divisors is an integer number (4219400).

Almost surely, 2^47389971 is an apocalyptic number.

47389971 is a deficient number, since it is larger than the sum of its proper divisors (20120429).

47389971 is a wasteful number, since it uses less digits than its factorization.

47389971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12498.

The product of its digits is 381024, while the sum is 48.

The square root of 47389971 is about 6884.0374054765. The cubic root of 47389971 is about 361.8779718525.

The spelling of 47389971 in words is "forty-seven million, three hundred eighty-nine thousand, nine hundred seventy-one".