3658387 has 2 divisors, whose sum is σ = 3658388. Its totient is φ = 3658386.

The previous prime is 3658381. The next prime is 3658399. The reversal of 3658387 is 7838563.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3658387 - 2¹⁵ = 3625619 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (3658381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1829193 + 1829194.

It is an arithmetic number, because the mean of its divisors is an integer number (1829194).

Almost surely, 2^3658387 is an apocalyptic number.

3658387 is a deficient number, since it is larger than the sum of its proper divisors (1).

3658387 is an equidigital number, since it uses as much as digits as its factorization.

3658387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 3658387 is about 1912.6910362105. The cubic root of 3658387 is about 154.0860119955.

The spelling of 3658387 in words is "three million, six hundred fifty-eight thousand, three hundred eighty-seven".