20876973 has 32 divisors (see below), whose sum is σ = 31342080. Its totient is φ = 12277440.

The previous prime is 20876971. The next prime is 20876987. The reversal of 20876973 is 37967802.

It is not a de Polignac number, because 20876973 - 2¹ = 20876971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20876971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98838 + ... + 99048.

It is an arithmetic number, because the mean of its divisors is an integer number (979440).

Almost surely, 2^20876973 is an apocalyptic number.

It is an amenable number.

20876973 is a deficient number, since it is larger than the sum of its proper divisors (10465107).

20876973 is a wasteful number, since it uses less digits than its factorization.

20876973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 20876973 is about 4569.1326310362. The cubic root of 20876973 is about 275.3525967536.

The spelling of 20876973 in words is "twenty million, eight hundred seventy-six thousand, nine hundred seventy-three".