20359069 has 4 divisors (see below), whose sum is σ = 20368096. Its totient is φ = 20350044.

The previous prime is 20359067. The next prime is 20359091. The reversal of 20359069 is 96095302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20359069 - 2¹ = 20359067 is a prime.

It is a super-2 number, since 2×20359069² = 828983381093522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20359063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2122 + ... + 6724.

It is an arithmetic number, because the mean of its divisors is an integer number (5092024).

Almost surely, 2^20359069 is an apocalyptic number.

It is an amenable number.

20359069 is a deficient number, since it is larger than the sum of its proper divisors (9027).

20359069 is an equidigital number, since it uses as much as digits as its factorization.

20359069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9026.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 20359069 is about 4512.1025032683. The cubic root of 20359069 is about 273.0565747492.

The spelling of 20359069 in words is "twenty million, three hundred fifty-nine thousand, sixty-nine".