47671649 has 8 divisors (see below), whose sum is σ = 49216992. Its totient is φ = 46146240.

The previous prime is 47671619. The next prime is 47671661. The reversal of 47671649 is 94617674.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47671649 - 2²⁴ = 30894433 is a prime.

It is a super-2 number, since 2×47671649² = 4545172236758402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47671619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47 + ... + 9764.

It is an arithmetic number, because the mean of its divisors is an integer number (6152124).

Almost surely, 2^47671649 is an apocalyptic number.

It is an amenable number.

47671649 is a deficient number, since it is larger than the sum of its proper divisors (1545343).

47671649 is a wasteful number, since it uses less digits than its factorization.

47671649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9967.

The product of its digits is 254016, while the sum is 44.

The square root of 47671649 is about 6904.4658736212. The cubic root of 47671649 is about 362.5935365442.

The spelling of 47671649 in words is "forty-seven million, six hundred seventy-one thousand, six hundred forty-nine".