20737741 has 2 divisors, whose sum is σ = 20737742. Its totient is φ = 20737740.

The previous prime is 20737709. The next prime is 20737747. The reversal of 20737741 is 14773702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12638025 + 8099716 = 3555^2 + 2846^2 .

It is a cyclic number.

It is not a de Polignac number, because 20737741 - 2⁵ = 20737709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20737747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10368870 + 10368871.

It is an arithmetic number, because the mean of its divisors is an integer number (10368871).

Almost surely, 2^20737741 is an apocalyptic number.

It is an amenable number.

20737741 is a deficient number, since it is larger than the sum of its proper divisors (1).

20737741 is an equidigital number, since it uses as much as digits as its factorization.

20737741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 20737741 is about 4553.8709907067. The cubic root of 20737741 is about 274.7391068383.

The spelling of 20737741 in words is "twenty million, seven hundred thirty-seven thousand, seven hundred forty-one".