20914069 has 8 divisors (see below), whose sum is σ = 22850208. Its totient is φ = 18983760.

The previous prime is 20914051. The next prime is 20914081. The reversal of 20914069 is 96041902.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20914069 - 2⁷ = 20913941 is a prime.

It is a super-3 number, since 3×20914069³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20914069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20914099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10014 + ... + 11920.

It is an arithmetic number, because the mean of its divisors is an integer number (2856276).

Almost surely, 2^20914069 is an apocalyptic number.

It is an amenable number.

20914069 is a deficient number, since it is larger than the sum of its proper divisors (1936139).

20914069 is a wasteful number, since it uses less digits than its factorization.

20914069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2915.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 20914069 is about 4573.1902431454. The cubic root of 20914069 is about 275.5155903049.

The spelling of 20914069 in words is "twenty million, nine hundred fourteen thousand, sixty-nine".