20960437 has 2 divisors, whose sum is σ = 20960438. Its totient is φ = 20960436.

The previous prime is 20960431. The next prime is 20960453. The reversal of 20960437 is 73406902.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17422276 + 3538161 = 4174^2 + 1881^2 .

It is a cyclic number.

It is not a de Polignac number, because 20960437 - 2¹¹ = 20958389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20960399 and 20960408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20960431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10480218 + 10480219.

It is an arithmetic number, because the mean of its divisors is an integer number (10480219).

Almost surely, 2^20960437 is an apocalyptic number.

It is an amenable number.

20960437 is a deficient number, since it is larger than the sum of its proper divisors (1).

20960437 is an equidigital number, since it uses as much as digits as its factorization.

20960437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 20960437 is about 4578.2569827392. The cubic root of 20960437 is about 275.7190526630.

The spelling of 20960437 in words is "twenty million, nine hundred sixty thousand, four hundred thirty-seven".