47275993 has 4 divisors (see below), whose sum is σ = 48429108. Its totient is φ = 46122880.

The previous prime is 47275981. The next prime is 47276029. The reversal of 47275993 is 39957274.

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 22155849 + 25120144 = 4707^2 + 5012^2 .

It is a cyclic number.

It is not a de Polignac number, because 47275993 - 2¹⁷ = 47144921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47275903) 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, 576496 + ... + 576577.

It is an arithmetic number, because the mean of its divisors is an integer number (12107277).

Almost surely, 2^47275993 is an apocalyptic number.

It is an amenable number.

47275993 is a deficient number, since it is larger than the sum of its proper divisors (1153115).

47275993 is a wasteful number, since it uses less digits than its factorization.

47275993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153114.

The product of its digits is 476280, while the sum is 46.

The square root of 47275993 is about 6875.7539950176. The cubic root of 47275993 is about 361.5876204133.

The spelling of 47275993 in words is "forty-seven million, two hundred seventy-five thousand, nine hundred ninety-three".