389610797 has 4 divisors (see below), whose sum is σ = 390053916. Its totient is φ = 389167680.

The previous prime is 389610763. The next prime is 389610803. The reversal of 389610797 is 797016983.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 101324356 + 288286441 = 10066^2 + 16979^2 .

It is a cyclic number.

It is not a de Polignac number, because 389610797 - 2⁶ = 389610733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389610707) 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, 220238 + ... + 221999.

It is an arithmetic number, because the mean of its divisors is an integer number (97513479).

Almost surely, 2^389610797 is an apocalyptic number.

It is an amenable number.

389610797 is a deficient number, since it is larger than the sum of its proper divisors (443119).

389610797 is an equidigital number, since it uses as much as digits as its factorization.

389610797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443118.

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 389610797 is about 19738.5611684337. The cubic root of 389610797 is about 730.3712360864.

The spelling of 389610797 in words is "three hundred eighty-nine million, six hundred ten thousand, seven hundred ninety-seven".