20970116 has 18 divisors (see below), whose sum is σ = 37193982. Its totient is φ = 10345120.

The previous prime is 20970101. The next prime is 20970121. The reversal of 20970116 is 61107902.

It can be written as a sum of positive squares in only one way, i.e., 11022400 + 9947716 = 3320^2 + 3154^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27176 + ... + 27936.

Almost surely, 2^20970116 is an apocalyptic number.

It is an amenable number.

20970116 is a deficient number, since it is larger than the sum of its proper divisors (16223866).

20970116 is an equidigital number, since it uses as much as digits as its factorization.

20970116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 20970116 is about 4579.3139224124. The cubic root of 20970116 is about 275.7614861619.

The spelling of 20970116 in words is "twenty million, nine hundred seventy thousand, one hundred sixteen".