3678407 has 2 divisors, whose sum is σ = 3678408. Its totient is φ = 3678406.

The previous prime is 3678391. The next prime is 3678431. The reversal of 3678407 is 7048763.

It is a weak prime.

It is an emirp because it is prime and its reverse (7048763) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3678407 - 2⁴ = 3678391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3678497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1839203 + 1839204.

It is an arithmetic number, because the mean of its divisors is an integer number (1839204).

Almost surely, 2^3678407 is an apocalyptic number.

3678407 is a deficient number, since it is larger than the sum of its proper divisors (1).

3678407 is an equidigital number, since it uses as much as digits as its factorization.

3678407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 3678407 is about 1917.9173600549. The cubic root of 3678407 is about 154.3665720674.

The spelling of 3678407 in words is "three million, six hundred seventy-eight thousand, four hundred seven".