389226479 has 2 divisors, whose sum is σ = 389226480. Its totient is φ = 389226478.

The previous prime is 389226463. The next prime is 389226499. The reversal of 389226479 is 974622983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 389226479 - 2⁴ = 389226463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389226499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194613239 + 194613240.

It is an arithmetic number, because the mean of its divisors is an integer number (194613240).

Almost surely, 2^389226479 is an apocalyptic number.

389226479 is a deficient number, since it is larger than the sum of its proper divisors (1).

389226479 is an equidigital number, since it uses as much as digits as its factorization.

389226479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 50.

The square root of 389226479 is about 19728.8235584386. The cubic root of 389226479 is about 730.1310073253.

The spelling of 389226479 in words is "three hundred eighty-nine million, two hundred twenty-six thousand, four hundred seventy-nine".