3781367 has 2 divisors, whose sum is σ = 3781368. Its totient is φ = 3781366.

The previous prime is 3781313. The next prime is 3781387. The reversal of 3781367 is 7631873.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3781367 - 2⁶ = 3781303 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 3 + 7 + 8⁷ + 1 + 3⁷ + 6⁸ + 7⁴ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3781387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1890683 + 1890684.

It is an arithmetic number, because the mean of its divisors is an integer number (1890684).

Almost surely, 2^3781367 is an apocalyptic number.

3781367 is a deficient number, since it is larger than the sum of its proper divisors (1).

3781367 is an equidigital number, since it uses as much as digits as its factorization.

3781367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 3781367 is about 1944.5737322097. The cubic root of 3781367 is about 155.7935989390.

The spelling of 3781367 in words is "three million, seven hundred eighty-one thousand, three hundred sixty-seven".