47697943 has 4 divisors (see below), whose sum is σ = 47879568. Its totient is φ = 47516320.

The previous prime is 47697941. The next prime is 47697959. The reversal of 47697943 is 34979674.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34979674 = 2 ⋅17489837.

It is a cyclic number.

It is not a de Polignac number, because 47697943 - 2¹ = 47697941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47697941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90418 + ... + 90943.

It is an arithmetic number, because the mean of its divisors is an integer number (11969892).

Almost surely, 2^47697943 is an apocalyptic number.

47697943 is a deficient number, since it is larger than the sum of its proper divisors (181625).

47697943 is a wasteful number, since it uses less digits than its factorization.

47697943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181624.

The product of its digits is 1143072, while the sum is 49.

The square root of 47697943 is about 6906.3697410434. The cubic root of 47697943 is about 362.6601888929.

The spelling of 47697943 in words is "forty-seven million, six hundred ninety-seven thousand, nine hundred forty-three".