3721000037 has 2 divisors, whose sum is σ = 3721000038. Its totient is φ = 3721000036.

The previous prime is 3720999949. The next prime is 3721000057. The reversal of 3721000037 is 7300001273.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3690684001 + 30316036 = 60751^2 + 5506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3721000037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3720999976 and 3721000021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3721000057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1860500018 + 1860500019.

It is an arithmetic number, because the mean of its divisors is an integer number (1860500019).

Almost surely, 2^3721000037 is an apocalyptic number.

It is an amenable number.

3721000037 is a deficient number, since it is larger than the sum of its proper divisors (1).

3721000037 is an equidigital number, since it uses as much as digits as its factorization.

3721000037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 3721000037 is about 61000.0003032787. Note that the first 3 decimals coincide. The cubic root of 3721000037 is about 1549.6010123933.

The spelling of 3721000037 in words is "three billion, seven hundred twenty-one million, thirty-seven", and thus it is an aban number.