388964 has 6 divisors (see below), whose sum is σ = 680694. Its totient is φ = 194480.

The previous prime is 388963. The next prime is 388991. The reversal of 388964 is 469883.

388964 = T₄₃₉ + T₄₄₀ + ... + T₄₄₂.

It can be written as a sum of positive squares in only one way, i.e., 195364 + 193600 = 442^2 + 440^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48617 + ... + 48624.

It is an arithmetic number, because the mean of its divisors is an integer number (113449).

2³⁸⁸⁹⁶⁴ is an apocalyptic number.

It is an amenable number.

388964 is a deficient number, since it is larger than the sum of its proper divisors (291730).

388964 is a wasteful number, since it uses less digits than its factorization.

388964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97245 (or 97243 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 388964 is about 623.6697844212. The cubic root of 388964 is about 72.9966846558.

The spelling of 388964 in words is "three hundred eighty-eight thousand, nine hundred sixty-four".