117700521 has 8 divisors (see below), whose sum is σ = 161996544. Its totient is φ = 75935760.

The previous prime is 117700519. The next prime is 117700529. The reversal of 117700521 is 125007711.

It is a happy number.

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

It is not a de Polignac number, because 117700521 - 2¹ = 117700519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117700491 and 117700500.

It is not an unprimeable number, because it can be changed into a prime (117700529) 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, 632706 + ... + 632891.

It is an arithmetic number, because the mean of its divisors is an integer number (20249568).

Almost surely, 2^117700521 is an apocalyptic number.

It is an amenable number.

117700521 is a deficient number, since it is larger than the sum of its proper divisors (44296023).

117700521 is a wasteful number, since it uses less digits than its factorization.

117700521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265631.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 117700521 is about 10848.9870955772. The cubic root of 117700521 is about 490.0715167029.

The spelling of 117700521 in words is "one hundred seventeen million, seven hundred thousand, five hundred twenty-one".