537687373 has 4 divisors (see below), whose sum is σ = 569316060. Its totient is φ = 506058688.

The previous prime is 537687341. The next prime is 537687377. The reversal of 537687373 is 373786735.

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 357134404 + 180552969 = 18898^2 + 13437^2 .

It is a cyclic number.

It is not a de Polignac number, because 537687373 - 2⁵ = 537687341 is a prime.

It is a super-2 number, since 2×537687373² = 578215422167282258, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537687377) 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, 15814318 + ... + 15814351.

It is an arithmetic number, because the mean of its divisors is an integer number (142329015).

Almost surely, 2^537687373 is an apocalyptic number.

It is an amenable number.

537687373 is a deficient number, since it is larger than the sum of its proper divisors (31628687).

537687373 is a wasteful number, since it uses less digits than its factorization.

537687373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31628686.

The product of its digits is 2222640, while the sum is 49.

The square root of 537687373 is about 23188.0868766701. The cubic root of 537687373 is about 813.1611334620.

The spelling of 537687373 in words is "five hundred thirty-seven million, six hundred eighty-seven thousand, three hundred seventy-three".