47897437 has 8 divisors (see below), whose sum is σ = 55069056. Its totient is φ = 40808112.

The previous prime is 47897419. The next prime is 47897441. The reversal of 47897437 is 73479874.

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 47897437 - 2¹⁵ = 47864669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47897497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19318 + ... + 21655.

It is an arithmetic number, because the mean of its divisors is an integer number (6883632).

Almost surely, 2^47897437 is an apocalyptic number.

It is an amenable number.

47897437 is a deficient number, since it is larger than the sum of its proper divisors (7171619).

47897437 is a wasteful number, since it uses less digits than its factorization.

47897437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41147.

The product of its digits is 1185408, while the sum is 49.

The square root of 47897437 is about 6920.7974251527. The cubic root of 47897437 is about 363.1650876811.

The spelling of 47897437 in words is "forty-seven million, eight hundred ninety-seven thousand, four hundred thirty-seven".