20760947 has 2 divisors, whose sum is σ = 20760948. Its totient is φ = 20760946.

The previous prime is 20760937. The next prime is 20760967. The reversal of 20760947 is 74906702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20760947 - 2⁴ = 20760931 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20760937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10380473 + 10380474.

It is an arithmetic number, because the mean of its divisors is an integer number (10380474).

Almost surely, 2^20760947 is an apocalyptic number.

20760947 is a deficient number, since it is larger than the sum of its proper divisors (1).

20760947 is an equidigital number, since it uses as much as digits as its factorization.

20760947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 20760947 is about 4556.4182204885. The cubic root of 20760947 is about 274.8415483891.

The spelling of 20760947 in words is "twenty million, seven hundred sixty thousand, nine hundred forty-seven".