20914678 has 8 divisors (see below), whose sum is σ = 31397760. Its totient is φ = 10448760.

The previous prime is 20914669. The next prime is 20914679. The reversal of 20914678 is 87641902.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20914679) 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, 613 + ... + 6496.

It is an arithmetic number, because the mean of its divisors is an integer number (3924720).

Almost surely, 2^20914678 is an apocalyptic number.

20914678 is a deficient number, since it is larger than the sum of its proper divisors (10483082).

20914678 is a wasteful number, since it uses less digits than its factorization.

20914678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8582.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 20914678 is about 4573.2568263766. The cubic root of 20914678 is about 275.5182645392.

The spelling of 20914678 in words is "twenty million, nine hundred fourteen thousand, six hundred seventy-eight".