389619673 has 4 divisors (see below), whose sum is σ = 395434960. Its totient is φ = 383804388.

The previous prime is 389619647. The next prime is 389619683. The reversal of 389619673 is 376916983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 389619673 - 2²¹ = 387522521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389619673.

It is not an unprimeable number, because it can be changed into a prime (389619683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2907543 + ... + 2907676.

It is an arithmetic number, because the mean of its divisors is an integer number (98858740).

Almost surely, 2^389619673 is an apocalyptic number.

It is an amenable number.

389619673 is a deficient number, since it is larger than the sum of its proper divisors (5815287).

389619673 is an equidigital number, since it uses as much as digits as its factorization.

389619673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5815286.

The product of its digits is 1469664, while the sum is 52.

The square root of 389619673 is about 19738.7860062366. The cubic root of 389619673 is about 730.3767824127.

The spelling of 389619673 in words is "three hundred eighty-nine million, six hundred nineteen thousand, six hundred seventy-three".