20071347 has 8 divisors (see below), whose sum is σ = 26787840. Its totient is φ = 13367880.

The previous prime is 20071333. The next prime is 20071361. The reversal of 20071347 is 74317002.

It is an interprime number because it is at equal distance from previous prime (20071333) and next prime (20071361).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20071347 - 2¹² = 20067251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20071307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1222 + ... + 6452.

It is an arithmetic number, because the mean of its divisors is an integer number (3348480).

Almost surely, 2^20071347 is an apocalyptic number.

20071347 is a deficient number, since it is larger than the sum of its proper divisors (6716493).

20071347 is a wasteful number, since it uses less digits than its factorization.

20071347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6513.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 20071347 is about 4480.1056907176. The cubic root of 20071347 is about 271.7641545229.

Adding to 20071347 its reverse (74317002), we get a palindrome (94388349).

The spelling of 20071347 in words is "twenty million, seventy-one thousand, three hundred forty-seven".