389537393 has 8 divisors (see below), whose sum is σ = 445989312. Its totient is φ = 333286416.

The previous prime is 389537389. The next prime is 389537429. The reversal of 389537393 is 393735983.

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

It is a cyclic number.

It is not a de Polignac number, because 389537393 - 2² = 389537389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389537383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46055 + ... + 53852.

It is an arithmetic number, because the mean of its divisors is an integer number (55748664).

Almost surely, 2^389537393 is an apocalyptic number.

It is an amenable number.

389537393 is a deficient number, since it is larger than the sum of its proper divisors (56451919).

389537393 is an equidigital number, since it uses as much as digits as its factorization.

389537393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100471.

The product of its digits is 1837080, while the sum is 50.

The square root of 389537393 is about 19736.7016747987. The cubic root of 389537393 is about 730.3253650634.

The spelling of 389537393 in words is "three hundred eighty-nine million, five hundred thirty-seven thousand, three hundred ninety-three".