537440039 has 2 divisors, whose sum is σ = 537440040. Its totient is φ = 537440038.

The previous prime is 537440021. The next prime is 537440041. The reversal of 537440039 is 930044735.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-537440039 is a prime.

Together with 537440041, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 537439990 and 537440008.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (537440339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268720019 + 268720020.

It is an arithmetic number, because the mean of its divisors is an integer number (268720020).

Almost surely, 2^537440039 is an apocalyptic number.

537440039 is a deficient number, since it is larger than the sum of its proper divisors (1).

537440039 is an equidigital number, since it uses as much as digits as its factorization.

537440039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 537440039 is about 23182.7530504899. The cubic root of 537440039 is about 813.0364307367.

The spelling of 537440039 in words is "five hundred thirty-seven million, four hundred forty thousand, thirty-nine".