537690 has 16 divisors (see below), whose sum is σ = 1290528. Its totient is φ = 143376.

The previous prime is 537679. The next prime is 537703. The reversal of 537690 is 96735.

It is a super-2 number, since 2×537690² = 578221072200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 17923 = 537690 / (5 + 3 + 7 + 6 + 9 + 0).

It is a d-powerful number, because it can be written as 5⁷ + 3¹¹ + 6⁷ + 7⁴ + 9² + 0 .

It is an unprimeable number.

537690 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8932 + ... + 8991.

It is an arithmetic number, because the mean of its divisors is an integer number (80658).

2⁵³⁷⁶⁹⁰ is an apocalyptic number.

537690 is an abundant number, since it is smaller than the sum of its proper divisors (752838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

537690 is a wasteful number, since it uses less digits than its factorization.

537690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17933.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 537690 is about 733.2734824061. The cubic root of 537690 is about 81.3162457757.

The spelling of 537690 in words is "five hundred thirty-seven thousand, six hundred ninety".