20238677 has 2 divisors, whose sum is σ = 20238678. Its totient is φ = 20238676.

The previous prime is 20238671. The next prime is 20238703. The reversal of 20238677 is 77683202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12348196 + 7890481 = 3514^2 + 2809^2 .

It is a cyclic number.

It is not a de Polignac number, because 20238677 - 2⁴ = 20238661 is a prime.

It is a Chen prime.

It is equal to p_1284785 and since 20238677 and 1284785 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20238671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10119338 + 10119339.

It is an arithmetic number, because the mean of its divisors is an integer number (10119339).

Almost surely, 2^20238677 is an apocalyptic number.

It is an amenable number.

20238677 is a deficient number, since it is larger than the sum of its proper divisors (1).

20238677 is an equidigital number, since it uses as much as digits as its factorization.

20238677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 20238677 is about 4498.7417129682. The cubic root of 20238677 is about 272.5172763504.

The spelling of 20238677 in words is "twenty million, two hundred thirty-eight thousand, six hundred seventy-seven".