20000037 has 4 divisors (see below), whose sum is σ = 26666720. Its totient is φ = 13333356.

The previous prime is 20000033. The next prime is 20000047. The reversal of 20000037 is 73000002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20000037 - 2² = 20000033 is a prime.

It is a Duffinian number.

20000037 is a modest number, since divided by 37 gives 20 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 19999977 and 20000031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333337 + ... + 3333342.

It is an arithmetic number, because the mean of its divisors is an integer number (6666680).

Almost surely, 2^20000037 is an apocalyptic number.

It is an amenable number.

20000037 is a deficient number, since it is larger than the sum of its proper divisors (6666683).

20000037 is an equidigital number, since it uses as much as digits as its factorization.

20000037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6666682.

The product of its (nonzero) digits is 42, while the sum is 12.

The square root of 20000037 is about 4472.1400917234. The cubic root of 20000037 is about 271.4419290485.

Adding to 20000037 its reverse (73000002), we get a palindrome (93000039).

The spelling of 20000037 in words is "twenty million, thirty-seven", and thus it is an aban number and an uban number.