536717921 has 8 divisors (see below), whose sum is σ = 550572288. Its totient is φ = 522900000.

The previous prime is 536717917. The next prime is 536717927. The reversal of 536717921 is 129717635.

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 536717921 - 2² = 536717917 is a prime.

It is a super-2 number, since 2×536717921² = 576132253445124482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (536717927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22076 + ... + 39506.

It is an arithmetic number, because the mean of its divisors is an integer number (68821536).

Almost surely, 2^536717921 is an apocalyptic number.

It is an amenable number.

536717921 is a deficient number, since it is larger than the sum of its proper divisors (13854367).

536717921 is a wasteful number, since it uses less digits than its factorization.

536717921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18223.

The product of its digits is 79380, while the sum is 41.

The square root of 536717921 is about 23167.1733493752. The cubic root of 536717921 is about 812.6721287705.

The spelling of 536717921 in words is "five hundred thirty-six million, seven hundred seventeen thousand, nine hundred twenty-one".