20970006 has 8 divisors (see below), whose sum is σ = 41940024. Its totient is φ = 6990000.

The previous prime is 20969989. The next prime is 20970011. The reversal of 20970006 is 60007902.

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

20970006 is an admirable number.

It is a congruent number.

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, 1747495 + ... + 1747506.

It is an arithmetic number, because the mean of its divisors is an integer number (5242503).

Almost surely, 2^20970006 is an apocalyptic number.

20970006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20970006 is a wasteful number, since it uses less digits than its factorization.

20970006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3495006.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 20970006 is about 4579.3019118639. The cubic root of 20970006 is about 275.7610039866.

Adding to 20970006 its reverse (60007902), we get a palindrome (80977908).

The spelling of 20970006 in words is "twenty million, nine hundred seventy thousand, six".