20714656 has 12 divisors (see below), whose sum is σ = 40782042. Its totient is φ = 10357312.

The previous prime is 20714647. The next prime is 20714657. The reversal of 20714656 is 65641702.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20106256 + 608400 = 4484^2 + 780^2 .

It is not an unprimeable number, because it can be changed into a prime (20714657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323635 + ... + 323698.

Almost surely, 2^20714656 is an apocalyptic number.

It is an amenable number.

20714656 is a deficient number, since it is larger than the sum of its proper divisors (20067386).

20714656 is an equidigital number, since it uses as much as digits as its factorization.

20714656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647343 (or 647335 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 20714656 is about 4551.3356281426. The cubic root of 20714656 is about 274.6371235807.

The spelling of 20714656 in words is "twenty million, seven hundred fourteen thousand, six hundred fifty-six".