37673221 has 2 divisors, whose sum is σ = 37673222. Its totient is φ = 37673220.

The previous prime is 37673213. The next prime is 37673261. The reversal of 37673221 is 12237673.

37673221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34680321 + 2992900 = 5889^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 37673221 - 2³ = 37673213 is a prime.

It is a zygodrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37673201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18836610 + 18836611.

It is an arithmetic number, because the mean of its divisors is an integer number (18836611).

Almost surely, 2^37673221 is an apocalyptic number.

It is an amenable number.

37673221 is a deficient number, since it is larger than the sum of its proper divisors (1).

37673221 is an equidigital number, since it uses as much as digits as its factorization.

37673221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 31.

The square root of 37673221 is about 6137.8514970631. The cubic root of 37673221 is about 335.2310606125.

The spelling of 37673221 in words is "thirty-seven million, six hundred seventy-three thousand, two hundred twenty-one".