20796870 has 32 divisors (see below), whose sum is σ = 50077440. Its totient is φ = 5527520.

The previous prime is 20796869. The next prime is 20796871. The reversal of 20796870 is 7869702.

It is an interprime number because it is at equal distance from previous prime (20796869) and next prime (20796871).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20796871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9805 + ... + 11735.

It is an arithmetic number, because the mean of its divisors is an integer number (1564920).

Almost surely, 2^20796870 is an apocalyptic number.

20796870 is an abundant number, since it is smaller than the sum of its proper divisors (29280570).

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

20796870 is a wasteful number, since it uses less digits than its factorization.

20796870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 20796870 is about 4560.3585385362. The cubic root of 20796870 is about 274.9999779614. Note that the first 4 decimals are identical.

The spelling of 20796870 in words is "twenty million, seven hundred ninety-six thousand, eight hundred seventy".