389437677 has 12 divisors (see below), whose sum is σ = 565379100. Its totient is φ = 258306048.

The previous prime is 389437673. The next prime is 389437681. The reversal of 389437677 is 776734983.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (389437673) and next prime (389437681).

It can be written as a sum of positive squares in 2 ways, for example, as 383415561 + 6022116 = 19581^2 + 2454^2 .

It is not a de Polignac number, because 389437677 - 2² = 389437673 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389437673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108052 + ... + 111597.

It is an arithmetic number, because the mean of its divisors is an integer number (47114925).

Almost surely, 2^389437677 is an apocalyptic number.

It is an amenable number.

389437677 is a deficient number, since it is larger than the sum of its proper divisors (175941423).

389437677 is a wasteful number, since it uses less digits than its factorization.

389437677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219852 (or 219849 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 54.

The square root of 389437677 is about 19734.1753564723. The cubic root of 389437677 is about 730.2630421300.

The spelling of 389437677 in words is "three hundred eighty-nine million, four hundred thirty-seven thousand, six hundred seventy-seven".