20787214 has 32 divisors (see below), whose sum is σ = 36729792. Its totient is φ = 8640000.

The previous prime is 20787203. The next prime is 20787223. The reversal of 20787214 is 41278702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86134 + ... + 86374.

It is an arithmetic number, because the mean of its divisors is an integer number (1147806).

Almost surely, 2^20787214 is an apocalyptic number.

20787214 is a deficient number, since it is larger than the sum of its proper divisors (15942578).

20787214 is a wasteful number, since it uses less digits than its factorization.

20787214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 20787214 is about 4559.2997269318. The cubic root of 20787214 is about 274.9574104844.

The spelling of 20787214 in words is "twenty million, seven hundred eighty-seven thousand, two hundred fourteen".