537649 has 8 divisors (see below), whose sum is σ = 622080. Its totient is φ = 455136.

The previous prime is 537637. The next prime is 537661. The reversal of 537649 is 946735.

It is an interprime number because it is at equal distance from previous prime (537637) and next prime (537661).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 537649 - 2¹⁷ = 406577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192 + ... + 1054.

It is an arithmetic number, because the mean of its divisors is an integer number (77760).

2⁵³⁷⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

537649 is a deficient number, since it is larger than the sum of its proper divisors (84431).

537649 is an equidigital number, since it uses as much as digits as its factorization.

537649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959.

The product of its digits is 22680, while the sum is 34.

The square root of 537649 is about 733.2455250460. The cubic root of 537649 is about 81.3141788779.

The spelling of 537649 in words is "five hundred thirty-seven thousand, six hundred forty-nine".