2237036621 has 2 divisors, whose sum is σ = 2237036622. Its totient is φ = 2237036620.

The previous prime is 2237036617. The next prime is 2237036639. The reversal of 2237036621 is 1266307322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2179489225 + 57547396 = 46685^2 + 7586^2 .

It is a cyclic number.

It is not a de Polignac number, because 2237036621 - 2² = 2237036617 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2237036821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1118518310 + 1118518311.

It is an arithmetic number, because the mean of its divisors is an integer number (1118518311).

Almost surely, 2^2237036621 is an apocalyptic number.

It is an amenable number.

2237036621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2237036621 is an equidigital number, since it uses as much as digits as its factorization.

2237036621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 2237036621 is about 47297.3214992139. The cubic root of 2237036621 is about 1307.8492808049.

The spelling of 2237036621 in words is "two billion, two hundred thirty-seven million, thirty-six thousand, six hundred twenty-one".