536681737 has 4 divisors (see below), whose sum is σ = 537519636. Its totient is φ = 535843840.

The previous prime is 536681731. The next prime is 536681741. The reversal of 536681737 is 737186635.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 737186635 = 5 ⋅147437327.

It can be written as a sum of positive squares in 2 ways, for example, as 357550281 + 179131456 = 18909^2 + 13384^2 .

It is a cyclic number.

It is not a de Polignac number, because 536681737 - 2¹⁵ = 536648969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (536681731) 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, 417988 + ... + 419269.

It is an arithmetic number, because the mean of its divisors is an integer number (134379909).

Almost surely, 2^536681737 is an apocalyptic number.

It is an amenable number.

536681737 is a deficient number, since it is larger than the sum of its proper divisors (837899).

536681737 is an equidigital number, since it uses as much as digits as its factorization.

536681737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837898.

The product of its digits is 635040, while the sum is 46.

The square root of 536681737 is about 23166.3924036523. The cubic root of 536681737 is about 812.6538656767.

The spelling of 536681737 in words is "five hundred thirty-six million, six hundred eighty-one thousand, seven hundred thirty-seven".