667760127 has 32 divisors (see below), whose sum is σ = 967507968. Its totient is φ = 408519936.

The previous prime is 667760101. The next prime is 667760131. The reversal of 667760127 is 721067766.

It is not a de Polignac number, because 667760127 - 2⁶ = 667760063 is a prime.

It is a super-2 number, since 2×667760127² = 891807174422112258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667760627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184578 + ... + 188160.

It is an arithmetic number, because the mean of its divisors is an integer number (30234624).

Almost surely, 2^667760127 is an apocalyptic number.

667760127 is a deficient number, since it is larger than the sum of its proper divisors (299747841).

667760127 is a wasteful number, since it uses less digits than its factorization.

667760127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719.

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 667760127 is about 25841.0550674697. The cubic root of 667760127 is about 874.0578166417.

The spelling of 667760127 in words is "six hundred sixty-seven million, seven hundred sixty thousand, one hundred twenty-seven".