47506889 has 4 divisors (see below), whose sum is σ = 47769540. Its totient is φ = 47244240.

The previous prime is 47506883. The next prime is 47506909. The reversal of 47506889 is 98860574.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98860574 = 2 ⋅49430287.

It can be written as a sum of positive squares in 2 ways, for example, as 652864 + 46854025 = 808^2 + 6845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47506889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47506883) 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, 131054 + ... + 131415.

It is an arithmetic number, because the mean of its divisors is an integer number (11942385).

Almost surely, 2^47506889 is an apocalyptic number.

It is an amenable number.

47506889 is a deficient number, since it is larger than the sum of its proper divisors (262651).

47506889 is a wasteful number, since it uses less digits than its factorization.

47506889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262650.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 47506889 is about 6892.5241385141. The cubic root of 47506889 is about 362.1753294327.

The spelling of 47506889 in words is "forty-seven million, five hundred six thousand, eight hundred eighty-nine".