20374853 has 2 divisors, whose sum is σ = 20374854. Its totient is φ = 20374852.

The previous prime is 20374813. The next prime is 20374877. The reversal of 20374853 is 35847302.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19070689 + 1304164 = 4367^2 + 1142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20374853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20374813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10187426 + 10187427.

It is an arithmetic number, because the mean of its divisors is an integer number (10187427).

Almost surely, 2^20374853 is an apocalyptic number.

It is an amenable number.

20374853 is a deficient number, since it is larger than the sum of its proper divisors (1).

20374853 is an equidigital number, since it uses as much as digits as its factorization.

20374853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 20374853 is about 4513.8512381336. The cubic root of 20374853 is about 273.1271217153.

The spelling of 20374853 in words is "twenty million, three hundred seventy-four thousand, eight hundred fifty-three".