536688421 has 8 divisors (see below), whose sum is σ = 568404320. Its totient is φ = 505319472.

The previous prime is 536688403. The next prime is 536688437. The reversal of 536688421 is 124886635.

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 536688421 - 2⁵ = 536688389 is a prime.

It is a super-2 number, since 2×536688421² = 576068922470946482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (536688491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83550 + ... + 89743.

It is an arithmetic number, because the mean of its divisors is an integer number (71050540).

Almost surely, 2^536688421 is an apocalyptic number.

It is an amenable number.

536688421 is a deficient number, since it is larger than the sum of its proper divisors (31715899).

536688421 is a wasteful number, since it uses less digits than its factorization.

536688421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173475.

The product of its digits is 276480, while the sum is 43.

The square root of 536688421 is about 23166.5366639038. The cubic root of 536688421 is about 812.6572393434.

The spelling of 536688421 in words is "five hundred thirty-six million, six hundred eighty-eight thousand, four hundred twenty-one".