537897385 has 4 divisors (see below), whose sum is σ = 645476868. Its totient is φ = 430317904.

The previous prime is 537897383. The next prime is 537897407. The reversal of 537897385 is 583798735.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104591529 + 433305856 = 10227^2 + 20816^2 .

It is a cyclic number.

It is not a de Polignac number, because 537897385 - 2¹ = 537897383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537897383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53789734 + ... + 53789743.

It is an arithmetic number, because the mean of its divisors is an integer number (161369217).

Almost surely, 2^537897385 is an apocalyptic number.

It is an amenable number.

537897385 is a deficient number, since it is larger than the sum of its proper divisors (107579483).

537897385 is a wasteful number, since it uses less digits than its factorization.

537897385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107579482.

The product of its digits is 6350400, while the sum is 55.

The square root of 537897385 is about 23192.6148806037. The cubic root of 537897385 is about 813.2669888813.

The spelling of 537897385 in words is "five hundred thirty-seven million, eight hundred ninety-seven thousand, three hundred eighty-five".