20714429 has 2 divisors, whose sum is σ = 20714430. Its totient is φ = 20714428.

The previous prime is 20714383. The next prime is 20714437. The reversal of 20714429 is 92441702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11042329 + 9672100 = 3323^2 + 3110^2 .

It is a cyclic number.

It is not a de Polignac number, because 20714429 - 2¹⁶ = 20648893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20716429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10357214 + 10357215.

It is an arithmetic number, because the mean of its divisors is an integer number (10357215).

Almost surely, 2^20714429 is an apocalyptic number.

It is an amenable number.

20714429 is a deficient number, since it is larger than the sum of its proper divisors (1).

20714429 is an equidigital number, since it uses as much as digits as its factorization.

20714429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 20714429 is about 4551.3106903397. The cubic root of 20714429 is about 274.6361203802.

The spelling of 20714429 in words is "twenty million, seven hundred fourteen thousand, four hundred twenty-nine".