20752873 has 2 divisors, whose sum is σ = 20752874. Its totient is φ = 20752872.

The previous prime is 20752843. The next prime is 20752891. The reversal of 20752873 is 37825702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14462809 + 6290064 = 3803^2 + 2508^2 .

It is a cyclic number.

It is not a de Polignac number, because 20752873 - 2⁵ = 20752841 is a prime.

It is not a weakly prime, because it can be changed into another prime (20752843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10376436 + 10376437.

It is an arithmetic number, because the mean of its divisors is an integer number (10376437).

Almost surely, 2^20752873 is an apocalyptic number.

It is an amenable number.

20752873 is a deficient number, since it is larger than the sum of its proper divisors (1).

20752873 is an equidigital number, since it uses as much as digits as its factorization.

20752873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 20752873 is about 4555.5321313761. The cubic root of 20752873 is about 274.8059148445.

The spelling of 20752873 in words is "twenty million, seven hundred fifty-two thousand, eight hundred seventy-three".