20970069 has 8 divisors (see below), whose sum is σ = 27988992. Its totient is φ = 13965600.

The previous prime is 20970067. The next prime is 20970071. The reversal of 20970069 is 96007902.

It is an interprime number because it is at equal distance from previous prime (20970067) and next prime (20970071).

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

It is not a de Polignac number, because 20970069 - 2¹ = 20970067 is a prime.

It is a super-2 number, since 2×20970069² = 879487587729522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20970067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417 + ... + 6489.

It is an arithmetic number, because the mean of its divisors is an integer number (3498624).

Almost surely, 2^20970069 is an apocalyptic number.

It is an amenable number.

20970069 is a deficient number, since it is larger than the sum of its proper divisors (7018923).

20970069 is a wasteful number, since it uses less digits than its factorization.

20970069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7227.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 20970069 is about 4579.3087906364. The cubic root of 20970069 is about 275.7612801417.

The spelling of 20970069 in words is "twenty million, nine hundred seventy thousand, sixty-nine".