389671695 has 128 divisors (see below), whose sum is σ = 836352000. Its totient is φ = 168376320.

The previous prime is 389671693. The next prime is 389671699. The reversal of 389671695 is 596176983.

It is not a de Polignac number, because 389671695 - 2¹ = 389671693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389671691) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1616775 + ... + 1617015.

It is an arithmetic number, because the mean of its divisors is an integer number (6534000).

Almost surely, 2^389671695 is an apocalyptic number.

389671695 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

389671695 is an abundant number, since it is smaller than the sum of its proper divisors (446680305).

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

389671695 is a wasteful number, since it uses less digits than its factorization.

389671695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 344 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 389671695 is about 19740.1037231318. The cubic root of 389671695 is about 730.4092875903.

The spelling of 389671695 in words is "three hundred eighty-nine million, six hundred seventy-one thousand, six hundred ninety-five".