532637821 has 2 divisors, whose sum is σ = 532637822. Its totient is φ = 532637820.

The previous prime is 532637803. The next prime is 532637839. The reversal of 532637821 is 128736235.

It is a balanced prime because it is at equal distance from previous prime (532637803) and next prime (532637839).

It can be written as a sum of positive squares in only one way, i.e., 531809721 + 828100 = 23061^2 + 910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-532637821 is a prime.

It is a super-3 number, since 3×532637821³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (532637801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266318910 + 266318911.

It is an arithmetic number, because the mean of its divisors is an integer number (266318911).

Almost surely, 2^532637821 is an apocalyptic number.

It is an amenable number.

532637821 is a deficient number, since it is larger than the sum of its proper divisors (1).

532637821 is an equidigital number, since it uses as much as digits as its factorization.

532637821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 532637821 is about 23078.9475713257. The cubic root of 532637821 is about 810.6075921845.

The spelling of 532637821 in words is "five hundred thirty-two million, six hundred thirty-seven thousand, eight hundred twenty-one".