20675963 has 8 divisors (see below), whose sum is σ = 25777920. Its totient is φ = 16111080.

The previous prime is 20675957. The next prime is 20675969. The reversal of 20675963 is 36957602.

It is an interprime number because it is at equal distance from previous prime (20675957) and next prime (20675969).

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 20675963 - 2⁴ = 20675947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20675969) 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, 134183 + ... + 134336.

It is an arithmetic number, because the mean of its divisors is an integer number (3222240).

Almost surely, 2^20675963 is an apocalyptic number.

20675963 is a deficient number, since it is larger than the sum of its proper divisors (5101957).

20675963 is a wasteful number, since it uses less digits than its factorization.

20675963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268537.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 20675963 is about 4547.0829110541. The cubic root of 20675963 is about 274.4660183569.

The spelling of 20675963 in words is "twenty million, six hundred seventy-five thousand, nine hundred sixty-three".