20716029 has 24 divisors (see below), whose sum is σ = 31659264. Its totient is φ = 13032000.

The previous prime is 20716001. The next prime is 20716037. The reversal of 20716029 is 92061702.

It is not a de Polignac number, because 20716029 - 2⁵ = 20715997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20715993 and 20716011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20716079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10534 + ... + 12344.

It is an arithmetic number, because the mean of its divisors is an integer number (1319136).

Almost surely, 2^20716029 is an apocalyptic number.

It is an amenable number.

20716029 is a deficient number, since it is larger than the sum of its proper divisors (10943235).

20716029 is a wasteful number, since it uses less digits than its factorization.

20716029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889 (or 1886 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 20716029 is about 4551.4864604874. The cubic root of 20716029 is about 274.6431912402.

It can be divided in two parts, 2071 and 6029, that added together give a square (8100 = 90²).

The spelling of 20716029 in words is "twenty million, seven hundred sixteen thousand, twenty-nine".