37878241 has 2 divisors, whose sum is σ = 37878242. Its totient is φ = 37878240.

The previous prime is 37878223. The next prime is 37878251. The reversal of 37878241 is 14287873.

37878241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37564641 + 313600 = 6129^2 + 560^2 .

It is an emirp because it is prime and its reverse (14287873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37878241 - 2¹⁷ = 37747169 is a prime.

It is a super-2 number, since 2×37878241² = 2869522282508162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 37878194 and 37878203.

It is not a weakly prime, because it can be changed into another prime (37878221) 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, 18939120 + 18939121.

It is an arithmetic number, because the mean of its divisors is an integer number (18939121).

Almost surely, 2^37878241 is an apocalyptic number.

It is an amenable number.

37878241 is a deficient number, since it is larger than the sum of its proper divisors (1).

37878241 is an equidigital number, since it uses as much as digits as its factorization.

37878241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 40.

The square root of 37878241 is about 6154.5301201635. The cubic root of 37878241 is about 335.8380768595.

The spelling of 37878241 in words is "thirty-seven million, eight hundred seventy-eight thousand, two hundred forty-one".