20332087 has 2 divisors, whose sum is σ = 20332088. Its totient is φ = 20332086.

The previous prime is 20332079. The next prime is 20332099. The reversal of 20332087 is 78023302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20332087 - 2³ = 20332079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20336087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166043 + 10166044.

It is an arithmetic number, because the mean of its divisors is an integer number (10166044).

Almost surely, 2^20332087 is an apocalyptic number.

20332087 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332087 is an equidigital number, since it uses as much as digits as its factorization.

20332087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20332087 is about 4509.1115532885. Note that the first 3 decimals coincide. The cubic root of 20332087 is about 272.9358935648.

Adding to 20332087 its reverse (78023302), we get a palindrome (98355389).

The spelling of 20332087 in words is "twenty million, three hundred thirty-two thousand, eighty-seven".