127640607 has 12 divisors (see below), whose sum is σ = 180788616. Its totient is φ = 80087680.

The previous prime is 127640603. The next prime is 127640627. The reversal of 127640607 is 706046721.

It is not a de Polignac number, because 127640607 - 2² = 127640603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127640603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72744 + ... + 74477.

It is an arithmetic number, because the mean of its divisors is an integer number (15065718).

Almost surely, 2^127640607 is an apocalyptic number.

127640607 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

127640607 is a deficient number, since it is larger than the sum of its proper divisors (53148009).

127640607 is a wasteful number, since it uses less digits than its factorization.

127640607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147258 (or 147241 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 127640607 is about 11297.8142576341. The cubic root of 127640607 is about 503.4963040634.

The spelling of 127640607 in words is "one hundred twenty-seven million, six hundred forty thousand, six hundred seven".