389303893 has 16 divisors (see below), whose sum is σ = 451690560. Its totient is φ = 331603200.

The previous prime is 389303879. The next prime is 389303923. The reversal of 389303893 is 398303983.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 389303893 - 2⁵ = 389303861 is a prime.

It is a super-2 number, since 2×389303893² = 303115042209910898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389303843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38278 + ... + 47368.

It is an arithmetic number, because the mean of its divisors is an integer number (28230660).

Almost surely, 2^389303893 is an apocalyptic number.

It is an amenable number.

389303893 is a deficient number, since it is larger than the sum of its proper divisors (62386667).

389303893 is a wasteful number, since it uses less digits than its factorization.

389303893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9348.

The product of its (nonzero) digits is 419904, while the sum is 46.

The square root of 389303893 is about 19730.7854126489. The cubic root of 389303893 is about 730.1794098347.

The spelling of 389303893 in words is "three hundred eighty-nine million, three hundred three thousand, eight hundred ninety-three".