20976473 has 8 divisors (see below), whose sum is σ = 24108480. Its totient is φ = 17878320.

The previous prime is 20976469. The next prime is 20976479. The reversal of 20976473 is 37467902.

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

It is a cyclic number.

It is not a de Polignac number, because 20976473 - 2² = 20976469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20976479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7118 + ... + 9623.

It is an arithmetic number, because the mean of its divisors is an integer number (3013560).

Almost surely, 2^20976473 is an apocalyptic number.

It is an amenable number.

20976473 is a deficient number, since it is larger than the sum of its proper divisors (3132007).

20976473 is a wasteful number, since it uses less digits than its factorization.

20976473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16927.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 20976473 is about 4580.0079694254. The cubic root of 20976473 is about 275.7893486474.

The spelling of 20976473 in words is "twenty million, nine hundred seventy-six thousand, four hundred seventy-three".