20324677 has 2 divisors, whose sum is σ = 20324678. Its totient is φ = 20324676.

The previous prime is 20324657. The next prime is 20324723. The reversal of 20324677 is 77642302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10751841 + 9572836 = 3279^2 + 3094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20324677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20324657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10162338 + 10162339.

It is an arithmetic number, because the mean of its divisors is an integer number (10162339).

Almost surely, 2^20324677 is an apocalyptic number.

It is an amenable number.

20324677 is a deficient number, since it is larger than the sum of its proper divisors (1).

20324677 is an equidigital number, since it uses as much as digits as its factorization.

20324677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 20324677 is about 4508.2898087856. The cubic root of 20324677 is about 272.9027325041.

Adding to 20324677 its reverse (77642302), we get a palindrome (97966979).

The spelling of 20324677 in words is "twenty million, three hundred twenty-four thousand, six hundred seventy-seven".