47470993 has 4 divisors (see below), whose sum is σ = 48249268. Its totient is φ = 46692720.

The previous prime is 47470967. The next prime is 47471003. The reversal of 47470993 is 39907474.

It is a happy number.

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 27112849 + 20358144 = 5207^2 + 4512^2 .

It is a cyclic number.

It is not a de Polignac number, because 47470993 - 2¹⁷ = 47339921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47470903) 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, 389046 + ... + 389167.

It is an arithmetic number, because the mean of its divisors is an integer number (12062317).

Almost surely, 2^47470993 is an apocalyptic number.

It is an amenable number.

47470993 is a deficient number, since it is larger than the sum of its proper divisors (778275).

47470993 is an equidigital number, since it uses as much as digits as its factorization.

47470993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778274.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 47470993 is about 6889.9196657145. The cubic root of 47470993 is about 362.0840870768.

The spelling of 47470993 in words is "forty-seven million, four hundred seventy thousand, nine hundred ninety-three".