389716 has 6 divisors (see below), whose sum is σ = 682010. Its totient is φ = 194856.
The previous prime is 389713. The next prime is 389723. The reversal of 389716 is 617983.
It can be written as a sum of positive squares in only one way, i.e., 348100 + 41616 = 590^2 + 204^2 .
It is an Ulam number.
It is a plaindrome in base 11.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (389713) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48711 + ... + 48718.
2389716 is an apocalyptic number.
It is an amenable number.
389716 is a deficient number, since it is larger than the sum of its proper divisors (292294).
389716 is a wasteful number, since it uses less digits than its factorization.
389716 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 97433 (or 97431 counting only the distinct ones).
The product of its digits is 9072, while the sum is 34.
The square root of 389716 is about 624.2723764512. The cubic root of 389716 is about 73.0436968634.
The spelling of 389716 in words is "three hundred eighty-nine thousand, seven hundred sixteen".
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