47667849 has 4 divisors (see below), whose sum is σ = 63557136. Its totient is φ = 31778564.

The previous prime is 47667817. The next prime is 47667857. The reversal of 47667849 is 94876674.

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 47667849 - 2⁵ = 47667817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47667749) 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, 7944639 + ... + 7944644.

It is an arithmetic number, because the mean of its divisors is an integer number (15889284).

Almost surely, 2^47667849 is an apocalyptic number.

It is an amenable number.

47667849 is a deficient number, since it is larger than the sum of its proper divisors (15889287).

47667849 is a wasteful number, since it uses less digits than its factorization.

47667849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15889286.

The product of its digits is 2032128, while the sum is 51.

The square root of 47667849 is about 6904.1906839252. The cubic root of 47667849 is about 362.5839019425.

It can be divided in two parts, 47667 and 849, that added together give a triangular number (48516 = T₃₁₁).

The spelling of 47667849 in words is "forty-seven million, six hundred sixty-seven thousand, eight hundred forty-nine".