20010707 has 4 divisors (see below), whose sum is σ = 20098320. Its totient is φ = 19923096.

The previous prime is 20010701. The next prime is 20010721. The reversal of 20010707 is 70701002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20010707 - 2⁴ = 20010691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43463 + ... + 43920.

It is an arithmetic number, because the mean of its divisors is an integer number (5024580).

Almost surely, 2^20010707 is an apocalyptic number.

20010707 is a deficient number, since it is larger than the sum of its proper divisors (87613).

20010707 is an equidigital number, since it uses as much as digits as its factorization.

20010707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87612.

The product of its (nonzero) digits is 98, while the sum is 17.

The square root of 20010707 is about 4473.3328738201. The cubic root of 20010707 is about 271.4901918005.

Adding to 20010707 its reverse (70701002), we get a palindrome (90711709).

The spelling of 20010707 in words is "twenty million, ten thousand, seven hundred seven".