537387689 has 2 divisors, whose sum is σ = 537387690. Its totient is φ = 537387688.

The previous prime is 537387679. The next prime is 537387701. The reversal of 537387689 is 986783735.

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., 386515600 + 150872089 = 19660^2 + 12283^2 .

It is a cyclic number.

It is not a de Polignac number, because 537387689 - 2²⁰ = 536339113 is a prime.

It is not a weakly prime, because it can be changed into another prime (537387649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268693844 + 268693845.

It is an arithmetic number, because the mean of its divisors is an integer number (268693845).

Almost surely, 2^537387689 is an apocalyptic number.

It is an amenable number.

537387689 is a deficient number, since it is larger than the sum of its proper divisors (1).

537387689 is an equidigital number, since it uses as much as digits as its factorization.

537387689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 56.

The square root of 537387689 is about 23181.6239508797. The cubic root of 537387689 is about 813.0100316125.

The spelling of 537387689 in words is "five hundred thirty-seven million, three hundred eighty-seven thousand, six hundred eighty-nine".