20861314 has 4 divisors (see below), whose sum is σ = 31291974. Its totient is φ = 10430656.

The previous prime is 20861287. The next prime is 20861317. The reversal of 20861314 is 41316802.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11662225 + 9199089 = 3415^2 + 3033^2 .

It is not an unprimeable number, because it can be changed into a prime (20861317) by changing a digit.

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 as a sum of consecutive naturals, namely, 5215327 + ... + 5215330.

Almost surely, 2^20861314 is an apocalyptic number.

20861314 is a deficient number, since it is larger than the sum of its proper divisors (10430660).

20861314 is a wasteful number, since it uses less digits than its factorization.

20861314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10430659.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20861314 is about 4567.4187458564. The cubic root of 20861314 is about 275.2837358003.

The spelling of 20861314 in words is "twenty million, eight hundred sixty-one thousand, three hundred fourteen".