127691630 has 64 divisors (see below), whose sum is σ = 268240896. Its totient is φ = 43296000.

The previous prime is 127691617. The next prime is 127691717. The reversal of 127691630 is 36196721.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103115 + ... + 104345.

It is an arithmetic number, because the mean of its divisors is an integer number (4191264).

Almost surely, 2^127691630 is an apocalyptic number.

127691630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127691630 is an abundant number, since it is smaller than the sum of its proper divisors (140549266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127691630 is a wasteful number, since it uses less digits than its factorization.

127691630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 127691630 is about 11300.0721236636. The cubic root of 127691630 is about 503.5633842562.

The spelling of 127691630 in words is "one hundred twenty-seven million, six hundred ninety-one thousand, six hundred thirty".