47768657 has 16 divisors (see below), whose sum is σ = 52348032. Its totient is φ = 43411200.

The previous prime is 47768653. The next prime is 47768659. The reversal of 47768657 is 75686774.

It is not a de Polignac number, because 47768657 - 2² = 47768653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47768653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73508 + ... + 74154.

It is an arithmetic number, because the mean of its divisors is an integer number (3271752).

Almost surely, 2^47768657 is an apocalyptic number.

It is an amenable number.

47768657 is a deficient number, since it is larger than the sum of its proper divisors (4579375).

47768657 is a wasteful number, since it uses less digits than its factorization.

47768657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808.

The product of its digits is 1975680, while the sum is 50.

The square root of 47768657 is about 6911.4873218433. The cubic root of 47768657 is about 362.8393195368.

The spelling of 47768657 in words is "forty-seven million, seven hundred sixty-eight thousand, six hundred fifty-seven".