20970002 has 8 divisors (see below), whose sum is σ = 31808700. Its totient is φ = 10367104.

The previous prime is 20969989. The next prime is 20970011. The reversal of 20970002 is 20007902.

It can be written as a sum of positive squares in 2 ways, for example, as 20802721 + 167281 = 4561^2 + 409^2 .

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

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, 58727 + ... + 59082.

Almost surely, 2^20970002 is an apocalyptic number.

20970002 is a deficient number, since it is larger than the sum of its proper divisors (10838698).

20970002 is a wasteful number, since it uses less digits than its factorization.

20970002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117900.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 20970002 is about 4579.3014751160. The cubic root of 20970002 is about 275.7609864529.

Adding to 20970002 its reverse (20007902), we get a palindrome (40977904).

The spelling of 20970002 in words is "twenty million, nine hundred seventy thousand, two".