47609321 has 4 divisors (see below), whose sum is σ = 47732100. Its totient is φ = 47486544.

The previous prime is 47609293. The next prime is 47609327. The reversal of 47609321 is 12390674.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12390674 = 2 ⋅6195337.

It can be written as a sum of positive squares in 2 ways, for example, as 27931225 + 19678096 = 5285^2 + 4436^2 .

It is a cyclic number.

It is not a de Polignac number, because 47609321 - 2⁶ = 47609257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47609327) 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, 60806 + ... + 61583.

It is an arithmetic number, because the mean of its divisors is an integer number (11933025).

Almost surely, 2^47609321 is an apocalyptic number.

It is an amenable number.

47609321 is a deficient number, since it is larger than the sum of its proper divisors (122779).

47609321 is a wasteful number, since it uses less digits than its factorization.

47609321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122778.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 47609321 is about 6899.9507969260. The cubic root of 47609321 is about 362.4354440730.

Adding to 47609321 its reverse (12390674), we get a palindrome (59999995).

The spelling of 47609321 in words is "forty-seven million, six hundred nine thousand, three hundred twenty-one".