388477 has 2 divisors, whose sum is σ = 388478. Its totient is φ = 388476.

The previous prime is 388471. The next prime is 388481. The reversal of 388477 is 774883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320356 + 68121 = 566^2 + 261^2 .

It is a cyclic number.

It is not a de Polignac number, because 388477 - 2¹¹ = 386429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194238 + 194239.

It is an arithmetic number, because the mean of its divisors is an integer number (194239).

2³⁸⁸⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

388477 is a deficient number, since it is larger than the sum of its proper divisors (1).

388477 is an equidigital number, since it uses as much as digits as its factorization.

388477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 37.

The square root of 388477 is about 623.2792311637. The cubic root of 388477 is about 72.9662069148.

It can be divided in two parts, 38 and 8477, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 388477 in words is "three hundred eighty-eight thousand, four hundred seventy-seven".