388907 has 8 divisors (see below), whose sum is σ = 417696. Its totient is φ = 361152.

The previous prime is 388903. The next prime is 388931. The reversal of 388907 is 709883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 388907 - 2² = 388903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388901) 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 in 7 ways as a sum of consecutive naturals, for example, 623 + ... + 1079.

It is an arithmetic number, because the mean of its divisors is an integer number (52212).

2³⁸⁸⁹⁰⁷ is an apocalyptic number.

388907 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

388907 is a deficient number, since it is larger than the sum of its proper divisors (28789).

388907 is a wasteful number, since it uses less digits than its factorization.

388907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 388907 is about 623.6240854874. The cubic root of 388907 is about 72.9931187609.

The spelling of 388907 in words is "three hundred eighty-eight thousand, nine hundred seven".