47998427 has 4 divisors (see below), whose sum is σ = 50524680. Its totient is φ = 45472176.

The previous prime is 47998417. The next prime is 47998439. The reversal of 47998427 is 72489974.

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

It is a cyclic number.

It is not a de Polignac number, because 47998427 - 2⁴ = 47998411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47998417) 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, 1263098 + ... + 1263135.

It is an arithmetic number, because the mean of its divisors is an integer number (12631170).

Almost surely, 2^47998427 is an apocalyptic number.

47998427 is a deficient number, since it is larger than the sum of its proper divisors (2526253).

47998427 is a wasteful number, since it uses less digits than its factorization.

47998427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526252.

The product of its digits is 1016064, while the sum is 50.

The square root of 47998427 is about 6928.0897078488. The cubic root of 47998427 is about 363.4201486193.

The spelling of 47998427 in words is "forty-seven million, nine hundred ninety-eight thousand, four hundred twenty-seven".