20040793 has 2 divisors, whose sum is σ = 20040794. Its totient is φ = 20040792.

The previous prime is 20040781. The next prime is 20040803. The reversal of 20040793 is 39704002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10036224 + 10004569 = 3168^2 + 3163^2 .

It is a cyclic number.

It is not a de Polignac number, because 20040793 - 2¹³ = 20032601 is a prime.

It is not a weakly prime, because it can be changed into another prime (20040703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10020396 + 10020397.

It is an arithmetic number, because the mean of its divisors is an integer number (10020397).

Almost surely, 2^20040793 is an apocalyptic number.

It is an amenable number.

20040793 is a deficient number, since it is larger than the sum of its proper divisors (1).

20040793 is an equidigital number, since it uses as much as digits as its factorization.

20040793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 20040793 is about 4476.6944278117. The cubic root of 20040793 is about 271.6261850596.

Adding to 20040793 its reverse (39704002), we get a palindrome (59744795).

The spelling of 20040793 in words is "twenty million, forty thousand, seven hundred ninety-three".