47965647 has 4 divisors (see below), whose sum is σ = 63954200. Its totient is φ = 31977096.

The previous prime is 47965591. The next prime is 47965651. The reversal of 47965647 is 74656974.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 47965647 - 2²⁰ = 46917071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47965596 and 47965605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47965447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7994272 + ... + 7994277.

It is an arithmetic number, because the mean of its divisors is an integer number (15988550).

Almost surely, 2^47965647 is an apocalyptic number.

47965647 is a deficient number, since it is larger than the sum of its proper divisors (15988553).

47965647 is a wasteful number, since it uses less digits than its factorization.

47965647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15988552.

The product of its digits is 1270080, while the sum is 48.

The square root of 47965647 is about 6925.7235723064. The cubic root of 47965647 is about 363.3373985087.

The spelling of 47965647 in words is "forty-seven million, nine hundred sixty-five thousand, six hundred forty-seven".