47141993 has 4 divisors (see below), whose sum is σ = 47402628. Its totient is φ = 46881360.

The previous prime is 47141971. The next prime is 47142001. The reversal of 47141993 is 39914174.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2679769 + 44462224 = 1637^2 + 6668^2 .

It is a cyclic number.

It is not a de Polignac number, because 47141993 - 2¹⁰ = 47140969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47141933) 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, 130046 + ... + 130407.

It is an arithmetic number, because the mean of its divisors is an integer number (11850657).

Almost surely, 2^47141993 is an apocalyptic number.

It is an amenable number.

47141993 is a deficient number, since it is larger than the sum of its proper divisors (260635).

47141993 is a wasteful number, since it uses less digits than its factorization.

47141993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260634.

The product of its digits is 27216, while the sum is 38.

The square root of 47141993 is about 6866.0026944358. The cubic root of 47141993 is about 361.2456667863.

The spelling of 47141993 in words is "forty-seven million, one hundred forty-one thousand, nine hundred ninety-three".