20623607 has 8 divisors (see below), whose sum is σ = 21826560. Its totient is φ = 19432440.

The previous prime is 20623579. The next prime is 20623609. The reversal of 20623607 is 70632602.

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

It is not a de Polignac number, because 20623607 - 2¹⁰ = 20622583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20623609) 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, 788 + ... + 6470.

It is an arithmetic number, because the mean of its divisors is an integer number (2728320).

Almost surely, 2^20623607 is an apocalyptic number.

20623607 is a deficient number, since it is larger than the sum of its proper divisors (1202953).

20623607 is a wasteful number, since it uses less digits than its factorization.

20623607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5893.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 20623607 is about 4541.3221643041. The cubic root of 20623607 is about 274.2341534741.

The spelling of 20623607 in words is "twenty million, six hundred twenty-three thousand, six hundred seven".