389956423 has 2 divisors, whose sum is σ = 389956424. Its totient is φ = 389956422.

The previous prime is 389956373. The next prime is 389956433. The reversal of 389956423 is 324659983.

It is a strong prime.

It is an emirp because it is prime and its reverse (324659983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 389956423 - 2¹³ = 389948231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389956433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194978211 + 194978212.

It is an arithmetic number, because the mean of its divisors is an integer number (194978212).

Almost surely, 2^389956423 is an apocalyptic number.

389956423 is a deficient number, since it is larger than the sum of its proper divisors (1).

389956423 is an equidigital number, since it uses as much as digits as its factorization.

389956423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 49.

The square root of 389956423 is about 19747.3143237251. The cubic root of 389956423 is about 730.5871444424.

The spelling of 389956423 in words is "three hundred eighty-nine million, nine hundred fifty-six thousand, four hundred twenty-three".