20065629 has 8 divisors (see below), whose sum is σ = 27153760. Its totient is φ = 13177296.

The previous prime is 20065621. The next prime is 20065657. The reversal of 20065629 is 92656002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20065629 - 2³ = 20065621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20065596 and 20065605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20065621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49714 + ... + 50115.

It is an arithmetic number, because the mean of its divisors is an integer number (3394220).

Almost surely, 2^20065629 is an apocalyptic number.

It is an amenable number.

20065629 is a deficient number, since it is larger than the sum of its proper divisors (7088131).

20065629 is an equidigital number, since it uses as much as digits as its factorization.

20065629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99899.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 20065629 is about 4479.4674906734. The cubic root of 20065629 is about 271.7383450108.

The spelling of 20065629 in words is "twenty million, sixty-five thousand, six hundred twenty-nine".