636317097 has 16 divisors (see below), whose sum is σ = 914316480. Its totient is φ = 391309632.

The previous prime is 636317063. The next prime is 636317107. The reversal of 636317097 is 790713636.

It is not a de Polignac number, because 636317097 - 2¹⁰ = 636316073 is a prime.

It is a super-3 number, since 3×636317097³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (636317197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61878 + ... + 71424.

It is an arithmetic number, because the mean of its divisors is an integer number (57144780).

Almost surely, 2^636317097 is an apocalyptic number.

It is an amenable number.

636317097 is a deficient number, since it is larger than the sum of its proper divisors (277999383).

636317097 is a wasteful number, since it uses less digits than its factorization.

636317097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11272.

The product of its (nonzero) digits is 142884, while the sum is 42.

The square root of 636317097 is about 25225.3264993736. The cubic root of 636317097 is about 860.1176587714.

The spelling of 636317097 in words is "six hundred thirty-six million, three hundred seventeen thousand, ninety-seven".