389612712 has 32 divisors (see below), whose sum is σ = 1005454080. Its totient is φ = 125681280.

The previous prime is 389612711. The next prime is 389612831. The reversal of 389612712 is 217216983.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (389612711) 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, 261093 + ... + 262580.

It is an arithmetic number, because the mean of its divisors is an integer number (31420440).

Almost surely, 2^389612712 is an apocalyptic number.

It is an amenable number.

389612712 is an abundant number, since it is smaller than the sum of its proper divisors (615841368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389612712 is a wasteful number, since it uses less digits than its factorization.

389612712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523713 (or 523709 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 389612712 is about 19738.6096774824. The cubic root of 389612712 is about 730.3724327153.

The spelling of 389612712 in words is "three hundred eighty-nine million, six hundred twelve thousand, seven hundred twelve".