47456347 has 4 divisors (see below), whose sum is σ = 47497320. Its totient is φ = 47415376.

The previous prime is 47456341. The next prime is 47456369. The reversal of 47456347 is 74365474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74365474 = 2 ⋅37182737.

It is a cyclic number.

It is not a de Polignac number, because 47456347 - 2¹⁹ = 46932059 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47456341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18697 + ... + 21082.

It is an arithmetic number, because the mean of its divisors is an integer number (11874330).

Almost surely, 2^47456347 is an apocalyptic number.

47456347 is a deficient number, since it is larger than the sum of its proper divisors (40973).

47456347 is a wasteful number, since it uses less digits than its factorization.

47456347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40972.

The product of its digits is 282240, while the sum is 40.

The square root of 47456347 is about 6888.8567266274. The cubic root of 47456347 is about 362.0468458854.

The spelling of 47456347 in words is "forty-seven million, four hundred fifty-six thousand, three hundred forty-seven".