527879621 has 2 divisors, whose sum is σ = 527879622. Its totient is φ = 527879620.

The previous prime is 527879593. The next prime is 527879657. The reversal of 527879621 is 126978725.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 526473025 + 1406596 = 22945^2 + 1186^2 .

It is a cyclic number.

It is not a de Polignac number, because 527879621 - 2²² = 523685317 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 (527879021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263939810 + 263939811.

It is an arithmetic number, because the mean of its divisors is an integer number (263939811).

Almost surely, 2^527879621 is an apocalyptic number.

It is an amenable number.

527879621 is a deficient number, since it is larger than the sum of its proper divisors (1).

527879621 is an equidigital number, since it uses as much as digits as its factorization.

527879621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 47.

The square root of 527879621 is about 22975.6310250665. The cubic root of 527879621 is about 808.1865751588.

The spelling of 527879621 in words is "five hundred twenty-seven million, eight hundred seventy-nine thousand, six hundred twenty-one".