20960953 has 8 divisors (see below), whose sum is σ = 22675968. Its totient is φ = 19260624.

The previous prime is 20960941. The next prime is 20960957. The reversal of 20960953 is 35906902.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20960953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20960957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601 + ... + 6502.

It is an arithmetic number, because the mean of its divisors is an integer number (2834496).

Almost surely, 2^20960953 is an apocalyptic number.

It is an amenable number.

20960953 is a deficient number, since it is larger than the sum of its proper divisors (1715015).

20960953 is a wasteful number, since it uses less digits than its factorization.

20960953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7343.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 20960953 is about 4578.3133357165. The cubic root of 20960953 is about 275.7213151773.

The spelling of 20960953 in words is "twenty million, nine hundred sixty thousand, nine hundred fifty-three".