388346087 has 2 divisors, whose sum is σ = 388346088. Its totient is φ = 388346086.

The previous prime is 388346059. The next prime is 388346089. The reversal of 388346087 is 780643883.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 388346087 - 2¹⁶ = 388280551 is a prime.

Together with 388346089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388346089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194173043 + 194173044.

It is an arithmetic number, because the mean of its divisors is an integer number (194173044).

Almost surely, 2^388346087 is an apocalyptic number.

388346087 is a deficient number, since it is larger than the sum of its proper divisors (1).

388346087 is an equidigital number, since it uses as much as digits as its factorization.

388346087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 388346087 is about 19706.4985981782. The cubic root of 388346087 is about 729.5800969139.

The spelling of 388346087 in words is "three hundred eighty-eight million, three hundred forty-six thousand, eighty-seven".