20713673 has 8 divisors (see below), whose sum is σ = 21960960. Its totient is φ = 19502640.

The previous prime is 20713669. The next prime is 20713681. The reversal of 20713673 is 37631702.

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 20713673 - 2² = 20713669 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20713603) 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, 7883 + ... + 10176.

It is an arithmetic number, because the mean of its divisors is an integer number (2745120).

Almost surely, 2^20713673 is an apocalyptic number.

It is an amenable number.

20713673 is a deficient number, since it is larger than the sum of its proper divisors (1247287).

20713673 is a wasteful number, since it uses less digits than its factorization.

20713673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18127.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 20713673 is about 4551.2276365833. The cubic root of 20713673 is about 274.6327792723.

The spelling of 20713673 in words is "twenty million, seven hundred thirteen thousand, six hundred seventy-three".