389653081 has 4 divisors (see below), whose sum is σ = 392627664. Its totient is φ = 386678500.

The previous prime is 389653079. The next prime is 389653087. The reversal of 389653081 is 180356983.

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, and also an emirpimes, since its reverse is a distinct semiprime: 180356983 = 1693 ⋅106531.

It is a cyclic number.

It is not a de Polignac number, because 389653081 - 2¹ = 389653079 is a prime.

It is a super-2 number, since 2×389653081² = 303659047065585122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389653087) 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, 1487095 + ... + 1487356.

It is an arithmetic number, because the mean of its divisors is an integer number (98156916).

Almost surely, 2^389653081 is an apocalyptic number.

It is an amenable number.

389653081 is a deficient number, since it is larger than the sum of its proper divisors (2974583).

389653081 is a wasteful number, since it uses less digits than its factorization.

389653081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974582.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 389653081 is about 19739.6322407486. The cubic root of 389653081 is about 730.3976572400.

The spelling of 389653081 in words is "three hundred eighty-nine million, six hundred fifty-three thousand, eighty-one".