20020706 has 8 divisors (see below), whose sum is σ = 30540240. Its totient is φ = 9840628.

The previous prime is 20020691. The next prime is 20020711. The reversal of 20020706 is 60702002.

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

It is a super-4 number, since 4×20020706⁴ (a number of 30 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84716 + ... + 84951.

It is an arithmetic number, because the mean of its divisors is an integer number (3817530).

Almost surely, 2^20020706 is an apocalyptic number.

20020706 is a deficient number, since it is larger than the sum of its proper divisors (10519534).

20020706 is a wasteful number, since it uses less digits than its factorization.

20020706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169728.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 20020706 is about 4474.4503573065. The cubic root of 20020706 is about 271.5354039029.

Adding to 20020706 its reverse (60702002), we get a palindrome (80722708).

The spelling of 20020706 in words is "twenty million, twenty thousand, seven hundred six".