3678431 has 2 divisors, whose sum is σ = 3678432. Its totient is φ = 3678430.

The previous prime is 3678407. The next prime is 3678461. The reversal of 3678431 is 1348763.

3678431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3678431 is a prime.

It is a super-2 number, since 2×3678431² = 27061709243522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3678461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1839215 + 1839216.

It is an arithmetic number, because the mean of its divisors is an integer number (1839216).

Almost surely, 2^3678431 is an apocalyptic number.

3678431 is a deficient number, since it is larger than the sum of its proper divisors (1).

3678431 is an equidigital number, since it uses as much as digits as its factorization.

3678431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 3678431 is about 1917.9236168315. The cubic root of 3678431 is about 154.3669077915.

The spelling of 3678431 in words is "three million, six hundred seventy-eight thousand, four hundred thirty-one".