389379269 has 2 divisors, whose sum is σ = 389379270. Its totient is φ = 389379268.

The previous prime is 389379241. The next prime is 389379301. The reversal of 389379269 is 962973983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 235991044 + 153388225 = 15362^2 + 12385^2 .

It is a cyclic number.

It is not a de Polignac number, because 389379269 - 2⁸ = 389379013 is a prime.

It is a super-2 number, since 2×389379269² = 303232430253948722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389379209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194689634 + 194689635.

It is an arithmetic number, because the mean of its divisors is an integer number (194689635).

Almost surely, 2^389379269 is an apocalyptic number.

It is an amenable number.

389379269 is a deficient number, since it is larger than the sum of its proper divisors (1).

389379269 is an equidigital number, since it uses as much as digits as its factorization.

389379269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 56.

The square root of 389379269 is about 19732.6954316941. The cubic root of 389379269 is about 730.2265319352.

The spelling of 389379269 in words is "three hundred eighty-nine million, three hundred seventy-nine thousand, two hundred sixty-nine".