20679202 has 4 divisors (see below), whose sum is σ = 31018806. Its totient is φ = 10339600.

The previous prime is 20679199. The next prime is 20679223. The reversal of 20679202 is 20297602.

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., 17297281 + 3381921 = 4159^2 + 1839^2 .

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 as a sum of consecutive naturals, namely, 5169799 + ... + 5169802.

Almost surely, 2^20679202 is an apocalyptic number.

20679202 is a deficient number, since it is larger than the sum of its proper divisors (10339604).

20679202 is a wasteful number, since it uses less digits than its factorization.

20679202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10339603.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 20679202 is about 4547.4390595147. The cubic root of 20679202 is about 274.4803497977.

The spelling of 20679202 in words is "twenty million, six hundred seventy-nine thousand, two hundred two".