47891601 has 32 divisors (see below), whose sum is σ = 75928320. Its totient is φ = 29728512.

The previous prime is 47891593. The next prime is 47891603. The reversal of 47891601 is 10619874.

47891601 is a `hidden beast` number, since 47 + 8 + 9 + 1 + 601 = 666.

It is not a de Polignac number, because 47891601 - 2³ = 47891593 is a prime.

It is a super-3 number, since 3×47891601³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (47891603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46771 + ... + 47783.

It is an arithmetic number, because the mean of its divisors is an integer number (2372760).

Almost surely, 2^47891601 is an apocalyptic number.

It is an amenable number.

47891601 is a deficient number, since it is larger than the sum of its proper divisors (28036719).

47891601 is a wasteful number, since it uses less digits than its factorization.

47891601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142 (or 1136 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 47891601 is about 6920.3757845944. The cubic root of 47891601 is about 363.1503372917.

The spelling of 47891601 in words is "forty-seven million, eight hundred ninety-one thousand, six hundred one".