20029307 has 2 divisors, whose sum is σ = 20029308. Its totient is φ = 20029306.

The previous prime is 20029259. The next prime is 20029319. The reversal of 20029307 is 70392002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20029307 - 2¹² = 20025211 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20029337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10014653 + 10014654.

It is an arithmetic number, because the mean of its divisors is an integer number (10014654).

Almost surely, 2^20029307 is an apocalyptic number.

20029307 is a deficient number, since it is larger than the sum of its proper divisors (1).

20029307 is an equidigital number, since it uses as much as digits as its factorization.

20029307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 20029307 is about 4475.4113777395. The cubic root of 20029307 is about 271.5742826791.

The spelling of 20029307 in words is "twenty million, twenty-nine thousand, three hundred seven".