20074517 has 2 divisors, whose sum is σ = 20074518. Its totient is φ = 20074516.

The previous prime is 20074513. The next prime is 20074541. The reversal of 20074517 is 71547002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15295921 + 4778596 = 3911^2 + 2186^2 .

It is a cyclic number.

It is not a de Polignac number, because 20074517 - 2² = 20074513 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20074511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10037258 + 10037259.

It is an arithmetic number, because the mean of its divisors is an integer number (10037259).

Almost surely, 2^20074517 is an apocalyptic number.

It is an amenable number.

20074517 is a deficient number, since it is larger than the sum of its proper divisors (1).

20074517 is an equidigital number, since it uses as much as digits as its factorization.

20074517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 20074517 is about 4480.4594630462. The cubic root of 20074517 is about 271.7784609373.

The spelling of 20074517 in words is "twenty million, seventy-four thousand, five hundred seventeen".