528396931 has 2 divisors, whose sum is σ = 528396932. Its totient is φ = 528396930.

The previous prime is 528396929. The next prime is 528396989. The reversal of 528396931 is 139693825.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 528396931 - 2¹ = 528396929 is a prime.

It is a super-2 number, since 2×528396931² = 558406633380437522, which contains 22 as substring.

Together with 528396929, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_27770878 and since 528396931 and 27770878 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (528396031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264198465 + 264198466.

It is an arithmetic number, because the mean of its divisors is an integer number (264198466).

Almost surely, 2^528396931 is an apocalyptic number.

528396931 is a deficient number, since it is larger than the sum of its proper divisors (1).

528396931 is an equidigital number, since it uses as much as digits as its factorization.

528396931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 46.

The square root of 528396931 is about 22986.8860657550. The cubic root of 528396931 is about 808.4504904432.

The spelling of 528396931 in words is "five hundred twenty-eight million, three hundred ninety-six thousand, nine hundred thirty-one".