537987247 has 4 divisors (see below), whose sum is σ = 614842576. Its totient is φ = 461131920.

The previous prime is 537987221. The next prime is 537987257. The reversal of 537987247 is 742789735.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742789735 = 5 ⋅148557947.

It is a cyclic number.

It is not a de Polignac number, because 537987247 - 2¹¹ = 537985199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 537987194 and 537987203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537987257) 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, 38427654 + ... + 38427667.

It is an arithmetic number, because the mean of its divisors is an integer number (153710644).

Almost surely, 2^537987247 is an apocalyptic number.

537987247 is a deficient number, since it is larger than the sum of its proper divisors (76855329).

537987247 is an equidigital number, since it uses as much as digits as its factorization.

537987247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76855328.

The product of its digits is 2963520, while the sum is 52.

The square root of 537987247 is about 23194.5520974215. The cubic root of 537987247 is about 813.3122749221.

The spelling of 537987247 in words is "five hundred thirty-seven million, nine hundred eighty-seven thousand, two hundred forty-seven".