20893386 has 8 divisors (see below), whose sum is σ = 41786784. Its totient is φ = 6964460.

The previous prime is 20893339. The next prime is 20893387. The reversal of 20893386 is 68339802.

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

20893386 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20893387) 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, 1741110 + ... + 1741121.

It is an arithmetic number, because the mean of its divisors is an integer number (5223348).

Almost surely, 2^20893386 is an apocalyptic number.

20893386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20893386 is a wasteful number, since it uses less digits than its factorization.

20893386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482236.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 20893386 is about 4570.9283520965. The cubic root of 20893386 is about 275.4247364958.

The spelling of 20893386 in words is "twenty million, eight hundred ninety-three thousand, three hundred eighty-six".