388651 has 2 divisors, whose sum is σ = 388652. Its totient is φ = 388650.

The previous prime is 388621. The next prime is 388657. The reversal of 388651 is 156883.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 388651 - 2¹³ = 380459 is a prime.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (388657) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194325 + 194326.

It is an arithmetic number, because the mean of its divisors is an integer number (194326).

2³⁸⁸⁶⁵¹ is an apocalyptic number.

388651 is a deficient number, since it is larger than the sum of its proper divisors (1).

388651 is an equidigital number, since it uses as much as digits as its factorization.

388651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 31.

The square root of 388651 is about 623.4187998449. The cubic root of 388651 is about 72.9770992155.

The spelling of 388651 in words is "three hundred eighty-eight thousand, six hundred fifty-one".