47389191 has 16 divisors (see below), whose sum is σ = 64337376. Its totient is φ = 31021056.

The previous prime is 47389189. The next prime is 47389229. The reversal of 47389191 is 19198374.

It is a happy number.

It is not a de Polignac number, because 47389191 - 2¹ = 47389189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47389141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77001 + ... + 77613.

It is an arithmetic number, because the mean of its divisors is an integer number (4021086).

Almost surely, 2^47389191 is an apocalyptic number.

47389191 is a deficient number, since it is larger than the sum of its proper divisors (16948185).

47389191 is a wasteful number, since it uses less digits than its factorization.

47389191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042.

The product of its digits is 54432, while the sum is 42.

The square root of 47389191 is about 6883.9807524426. The cubic root of 47389191 is about 361.8759864369.

The spelling of 47389191 in words is "forty-seven million, three hundred eighty-nine thousand, one hundred ninety-one".