537244993 has 4 divisors (see below), whose sum is σ = 539493120. Its totient is φ = 534996868.

The previous prime is 537244987. The next prime is 537244997. The reversal of 537244993 is 399442735.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 399442735 = 5 ⋅79888547.

It is a cyclic number.

It is not a de Polignac number, because 537244993 - 2¹³ = 537236801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537244997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123705 + ... + 1124182.

It is an arithmetic number, because the mean of its divisors is an integer number (134873280).

Almost surely, 2^537244993 is an apocalyptic number.

It is an amenable number.

537244993 is a deficient number, since it is larger than the sum of its proper divisors (2248127).

537244993 is a wasteful number, since it uses less digits than its factorization.

537244993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248126.

The product of its digits is 816480, while the sum is 46.

The square root of 537244993 is about 23178.5459638865. The cubic root of 537244993 is about 812.9380639859.

The spelling of 537244993 in words is "five hundred thirty-seven million, two hundred forty-four thousand, nine hundred ninety-three".