667750107 has 8 divisors (see below), whose sum is σ = 901603840. Its totient is φ = 439531560.

The previous prime is 667750049. The next prime is 667750129. The reversal of 667750107 is 701057766.

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

It is not a de Polignac number, because 667750107 - 2¹⁸ = 667487963 is a prime.

It is a super-2 number, since 2×667750107² = 891780410797022898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667750177) 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, 1408519 + ... + 1408992.

It is an arithmetic number, because the mean of its divisors is an integer number (112700480).

Almost surely, 2^667750107 is an apocalyptic number.

667750107 is a deficient number, since it is larger than the sum of its proper divisors (233853733).

667750107 is a wasteful number, since it uses less digits than its factorization.

667750107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817593.

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 667750107 is about 25840.8611892096. The cubic root of 667750107 is about 874.0534447609.

The spelling of 667750107 in words is "six hundred sixty-seven million, seven hundred fifty thousand, one hundred seven".