20010671 has 8 divisors (see below), whose sum is σ = 20383200. Its totient is φ = 19641600.

The previous prime is 20010637. The next prime is 20010691. The reversal of 20010671 is 17601002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20010671 - 2¹⁸ = 19748527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010691) 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, 12695 + ... + 14183.

It is an arithmetic number, because the mean of its divisors is an integer number (2547900).

Almost surely, 2^20010671 is an apocalyptic number.

20010671 is a deficient number, since it is larger than the sum of its proper divisors (372529).

20010671 is a wasteful number, since it uses less digits than its factorization.

20010671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 20010671 is about 4473.3288499729. The cubic root of 20010671 is about 271.4900289935.

Adding to 20010671 its reverse (17601002), we get a palindrome (37611673).

The spelling of 20010671 in words is "twenty million, ten thousand, six hundred seventy-one".