20395673 has 8 divisors (see below), whose sum is σ = 20938176. Its totient is φ = 19860400.

The previous prime is 20395657. The next prime is 20395681. The reversal of 20395673 is 37659302.

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 20395673 - 2⁴ = 20395657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20395633) 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, 4163 + ... + 7623.

It is an arithmetic number, because the mean of its divisors is an integer number (2617272).

Almost surely, 2^20395673 is an apocalyptic number.

It is an amenable number.

20395673 is a deficient number, since it is larger than the sum of its proper divisors (542503).

20395673 is an equidigital number, since it uses as much as digits as its factorization.

20395673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 20395673 is about 4516.1568839003. The cubic root of 20395673 is about 273.2201215005.

The spelling of 20395673 in words is "twenty million, three hundred ninety-five thousand, six hundred seventy-three".