529389947 has 2 divisors, whose sum is σ = 529389948. Its totient is φ = 529389946.

The previous prime is 529389943. The next prime is 529389961. The reversal of 529389947 is 749983925.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 529389947 - 2² = 529389943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 529389892 and 529389901.

It is not a weakly prime, because it can be changed into another prime (529389943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264694973 + 264694974.

It is an arithmetic number, because the mean of its divisors is an integer number (264694974).

Almost surely, 2^529389947 is an apocalyptic number.

529389947 is a deficient number, since it is larger than the sum of its proper divisors (1).

529389947 is an equidigital number, since it uses as much as digits as its factorization.

529389947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 56.

The square root of 529389947 is about 23008.4755470674. The cubic root of 529389947 is about 808.9566136789.

The spelling of 529389947 in words is "five hundred twenty-nine million, three hundred eighty-nine thousand, nine hundred forty-seven".