217713007 has 8 divisors (see below), whose sum is σ = 220212432. Its totient is φ = 215222400.

The previous prime is 217712983. The next prime is 217713047. The reversal of 217713007 is 700317712.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-217713007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217713047) 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, 56007 + ... + 59767.

It is an arithmetic number, because the mean of its divisors is an integer number (27526554).

Almost surely, 2^217713007 is an apocalyptic number.

217713007 is a deficient number, since it is larger than the sum of its proper divisors (2499425).

217713007 is a wasteful number, since it uses less digits than its factorization.

217713007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4409.

The product of its (nonzero) digits is 2058, while the sum is 28.

The square root of 217713007 is about 14755.1010501453. The cubic root of 217713007 is about 601.5819430208.

The spelling of 217713007 in words is "two hundred seventeen million, seven hundred thirteen thousand, seven".