20632037 has 2 divisors, whose sum is σ = 20632038. Its totient is φ = 20632036.

The previous prime is 20631991. The next prime is 20632093. The reversal of 20632037 is 73023602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19307236 + 1324801 = 4394^2 + 1151^2 .

It is a cyclic number.

It is not a de Polignac number, because 20632037 - 2⁶ = 20631973 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20632097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10316018 + 10316019.

It is an arithmetic number, because the mean of its divisors is an integer number (10316019).

Almost surely, 2^20632037 is an apocalyptic number.

It is an amenable number.

20632037 is a deficient number, since it is larger than the sum of its proper divisors (1).

20632037 is an equidigital number, since it uses as much as digits as its factorization.

20632037 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 23.

The square root of 20632037 is about 4542.2502132754. The cubic root of 20632037 is about 274.2715132337.

Adding to 20632037 its reverse (73023602), we get a palindrome (93655639).

The spelling of 20632037 in words is "twenty million, six hundred thirty-two thousand, thirty-seven".