3678247 has 2 divisors, whose sum is σ = 3678248. Its totient is φ = 3678246.

The previous prime is 3678223. The next prime is 3678287. The reversal of 3678247 is 7428763.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3678247 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 3¹² + 6³ + 7 + 8³ + 2²¹ + 4¹⁰ + 7³ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3678217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1839123 + 1839124.

It is an arithmetic number, because the mean of its divisors is an integer number (1839124).

Almost surely, 2^3678247 is an apocalyptic number.

3678247 is a deficient number, since it is larger than the sum of its proper divisors (1).

3678247 is an equidigital number, since it uses as much as digits as its factorization.

3678247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 37.

The square root of 3678247 is about 1917.8756476894. The cubic root of 3678247 is about 154.3643338694.

The spelling of 3678247 in words is "three million, six hundred seventy-eight thousand, two hundred forty-seven".