47986261 has 4 divisors (see below), whose sum is σ = 48009024. Its totient is φ = 47963500.

The previous prime is 47986243. The next prime is 47986319. The reversal of 47986261 is 16268974.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47986261 - 2²⁵ = 14431829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47983261) 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, 7855 + ... + 12556.

It is an arithmetic number, because the mean of its divisors is an integer number (12002256).

Almost surely, 2^47986261 is an apocalyptic number.

It is an amenable number.

47986261 is a deficient number, since it is larger than the sum of its proper divisors (22763).

47986261 is a wasteful number, since it uses less digits than its factorization.

47986261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22762.

The product of its digits is 145152, while the sum is 43.

The square root of 47986261 is about 6927.2116323958. The cubic root of 47986261 is about 363.3894410634.

The spelling of 47986261 in words is "forty-seven million, nine hundred eighty-six thousand, two hundred sixty-one".