3778667 has 2 divisors, whose sum is σ = 3778668. Its totient is φ = 3778666.

The previous prime is 3778661. The next prime is 3778679. The reversal of 3778667 is 7668773.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3778667 - 2⁴ = 3778651 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3778661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1889333 + 1889334.

It is an arithmetic number, because the mean of its divisors is an integer number (1889334).

Almost surely, 2^3778667 is an apocalyptic number.

3778667 is a deficient number, since it is larger than the sum of its proper divisors (1).

3778667 is an equidigital number, since it uses as much as digits as its factorization.

3778667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 44.

The square root of 3778667 is about 1943.8793686852. The cubic root of 3778667 is about 155.7565098057.

The spelling of 3778667 in words is "three million, seven hundred seventy-eight thousand, six hundred sixty-seven".