531896819 has 2 divisors, whose sum is σ = 531896820. Its totient is φ = 531896818.

The previous prime is 531896803. The next prime is 531896839. The reversal of 531896819 is 918698135.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531896819 - 2⁴ = 531896803 is a prime.

It is a super-2 number, since 2×531896819² = 565828452124637522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (531896839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265948409 + 265948410.

It is an arithmetic number, because the mean of its divisors is an integer number (265948410).

Almost surely, 2^531896819 is an apocalyptic number.

531896819 is a deficient number, since it is larger than the sum of its proper divisors (1).

531896819 is an equidigital number, since it uses as much as digits as its factorization.

531896819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 50.

The square root of 531896819 is about 23062.8883490338. Note that the first 3 decimals coincide. The cubic root of 531896819 is about 810.2315138662.

The spelling of 531896819 in words is "five hundred thirty-one million, eight hundred ninety-six thousand, eight hundred nineteen".