20694463 has 8 divisors (see below), whose sum is σ = 21366576. Its totient is φ = 20030400.

The previous prime is 20694449. The next prime is 20694467. The reversal of 20694463 is 36449602.

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 20694463 - 2¹⁷ = 20563391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20694467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3445 + ... + 7297.

It is an arithmetic number, because the mean of its divisors is an integer number (2670822).

Almost surely, 2^20694463 is an apocalyptic number.

20694463 is a deficient number, since it is larger than the sum of its proper divisors (672113).

20694463 is a wasteful number, since it uses less digits than its factorization.

20694463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4025.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 20694463 is about 4549.1167274538. The cubic root of 20694463 is about 274.5478542498.

The spelling of 20694463 in words is "twenty million, six hundred ninety-four thousand, four hundred sixty-three".