47971605 has 16 divisors (see below), whose sum is σ = 83732544. Its totient is φ = 23258880.

The previous prime is 47971591. The next prime is 47971619. The reversal of 47971605 is 50617974.

It is an interprime number because it is at equal distance from previous prime (47971591) and next prime (47971619).

It is not a de Polignac number, because 47971605 - 2¹⁰ = 47970581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145204 + ... + 145533.

It is an arithmetic number, because the mean of its divisors is an integer number (5233284).

Almost surely, 2^47971605 is an apocalyptic number.

It is an amenable number.

47971605 is a deficient number, since it is larger than the sum of its proper divisors (35760939).

47971605 is a wasteful number, since it uses less digits than its factorization.

47971605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290756.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 47971605 is about 6926.1536945118. The cubic root of 47971605 is about 363.3524417374.

The spelling of 47971605 in words is "forty-seven million, nine hundred seventy-one thousand, six hundred five".