47424891 has 8 divisors (see below), whose sum is σ = 63281664. Its totient is φ = 31592360.

The previous prime is 47424887. The next prime is 47424901. The reversal of 47424891 is 19842474.

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 47424891 - 2² = 47424887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47424851) 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, 855 + ... + 9776.

It is an arithmetic number, because the mean of its divisors is an integer number (7910208).

Almost surely, 2^47424891 is an apocalyptic number.

47424891 is a deficient number, since it is larger than the sum of its proper divisors (15856773).

47424891 is a wasteful number, since it uses less digits than its factorization.

47424891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12121.

The product of its digits is 64512, while the sum is 39.

The square root of 47424891 is about 6886.5732407345. The cubic root of 47424891 is about 361.9668350720.

The spelling of 47424891 in words is "forty-seven million, four hundred twenty-four thousand, eight hundred ninety-one".