47638657 has 16 divisors (see below), whose sum is σ = 53149824. Its totient is φ = 42336000.

The previous prime is 47638651. The next prime is 47638663. The reversal of 47638657 is 75683674.

It is an interprime number because it is at equal distance from previous prime (47638651) and next prime (47638663).

It is a cyclic number.

It is not a de Polignac number, because 47638657 - 2³ = 47638649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47638651) 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, 141193 + ... + 141529.

It is an arithmetic number, because the mean of its divisors is an integer number (3321864).

Almost surely, 2^47638657 is an apocalyptic number.

It is an amenable number.

47638657 is a deficient number, since it is larger than the sum of its proper divisors (5511167).

47638657 is a wasteful number, since it uses less digits than its factorization.

47638657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600.

The product of its digits is 846720, while the sum is 46.

The square root of 47638657 is about 6902.0762818155. The cubic root of 47638657 is about 362.5098708370.

The spelling of 47638657 in words is "forty-seven million, six hundred thirty-eight thousand, six hundred fifty-seven".