389519969 has 8 divisors (see below), whose sum is σ = 411831840. Its totient is φ = 367389216.

The previous prime is 389519957. The next prime is 389519971. The reversal of 389519969 is 969915983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389519969 is a prime.

It is a super-2 number, since 2×389519969² = 303451612499521922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (389519939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40844 + ... + 49469.

It is an arithmetic number, because the mean of its divisors is an integer number (51478980).

Almost surely, 2^389519969 is an apocalyptic number.

It is an amenable number.

389519969 is a deficient number, since it is larger than the sum of its proper divisors (22311871).

389519969 is a wasteful number, since it uses less digits than its factorization.

389519969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90559.

The product of its digits is 4723920, while the sum is 59.

The square root of 389519969 is about 19736.2602587218. The cubic root of 389519969 is about 730.3144757546.

The spelling of 389519969 in words is "three hundred eighty-nine million, five hundred nineteen thousand, nine hundred sixty-nine".