47242947 has 8 divisors (see below), whose sum is σ = 64527120. Its totient is φ = 30727040.

The previous prime is 47242931. The next prime is 47242957. The reversal of 47242947 is 74924274.

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

It is not a de Polignac number, because 47242947 - 2⁴ = 47242931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47242957) 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, 191922 + ... + 192167.

It is an arithmetic number, because the mean of its divisors is an integer number (8065890).

Almost surely, 2^47242947 is an apocalyptic number.

47242947 is a deficient number, since it is larger than the sum of its proper divisors (17284173).

47242947 is a wasteful number, since it uses less digits than its factorization.

47242947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384133.

The product of its digits is 112896, while the sum is 39.

The square root of 47242947 is about 6873.3504930274. The cubic root of 47242947 is about 361.5033506535.

The spelling of 47242947 in words is "forty-seven million, two hundred forty-two thousand, nine hundred forty-seven".