524349389 has 2 divisors, whose sum is σ = 524349390. Its totient is φ = 524349388.

The previous prime is 524349379. The next prime is 524349401. The reversal of 524349389 is 983943425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 443439364 + 80910025 = 21058^2 + 8995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-524349389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (524349359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262174694 + 262174695.

It is an arithmetic number, because the mean of its divisors is an integer number (262174695).

Almost surely, 2^524349389 is an apocalyptic number.

It is an amenable number.

524349389 is a deficient number, since it is larger than the sum of its proper divisors (1).

524349389 is an equidigital number, since it uses as much as digits as its factorization.

524349389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 47.

The square root of 524349389 is about 22898.6765774793. The cubic root of 524349389 is about 806.3809425849.

The spelling of 524349389 in words is "five hundred twenty-four million, three hundred forty-nine thousand, three hundred eighty-nine".