20329107 has 16 divisors (see below), whose sum is σ = 28882560. Its totient is φ = 12681792.

The previous prime is 20329103. The next prime is 20329109. The reversal of 20329107 is 70192302.

It is not a de Polignac number, because 20329107 - 2² = 20329103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20329103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2583 + ... + 6879.

It is an arithmetic number, because the mean of its divisors is an integer number (1805160).

Almost surely, 2^20329107 is an apocalyptic number.

20329107 is a deficient number, since it is larger than the sum of its proper divisors (8553453).

20329107 is a wasteful number, since it uses less digits than its factorization.

20329107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4402.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 20329107 is about 4508.7810991442. The cubic root of 20329107 is about 272.9225585064.

The spelling of 20329107 in words is "twenty million, three hundred twenty-nine thousand, one hundred seven".