8690387 has 2 divisors, whose sum is σ = 8690388. Its totient is φ = 8690386.

The previous prime is 8690377. The next prime is 8690399. The reversal of 8690387 is 7830968.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8690387 - 2⁴ = 8690371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8690317) 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, 4345193 + 4345194.

It is an arithmetic number, because the mean of its divisors is an integer number (4345194).

Almost surely, 2^8690387 is an apocalyptic number.

8690387 is a deficient number, since it is larger than the sum of its proper divisors (1).

8690387 is an equidigital number, since it uses as much as digits as its factorization.

8690387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 8690387 is about 2947.9462342451. The cubic root of 8690387 is about 205.5952321539.

The spelling of 8690387 in words is "eight million, six hundred ninety thousand, three hundred eighty-seven".