388965716 has 6 divisors (see below), whose sum is σ = 680690010. Its totient is φ = 194482856.

The previous prime is 388965679. The next prime is 388965727. The reversal of 388965716 is 617569883.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 366875716 + 22090000 = 19154^2 + 4700^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48620711 + ... + 48620718.

It is an arithmetic number, because the mean of its divisors is an integer number (113448335).

Almost surely, 2^388965716 is an apocalyptic number.

It is an amenable number.

388965716 is a deficient number, since it is larger than the sum of its proper divisors (291724294).

388965716 is a wasteful number, since it uses less digits than its factorization.

388965716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97241433 (or 97241431 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The square root of 388965716 is about 19722.2137702642. The cubic root of 388965716 is about 729.9679200264.

The spelling of 388965716 in words is "three hundred eighty-eight million, nine hundred sixty-five thousand, seven hundred sixteen".