127663900 has 72 divisors (see below), whose sum is σ = 340985120. Its totient is φ = 40400640.

The previous prime is 127663883. The next prime is 127663901. The reversal of 127663900 is 9366721.

127663900 = T₂₇₃ + T₂₇₄ + ... + T₉₂₂.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127663901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2086 + ... + 16114.

Almost surely, 2^127663900 is an apocalyptic number.

127663900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127663900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170492560).

127663900 is an abundant number, since it is smaller than the sum of its proper divisors (213321220).

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

127663900 is a wasteful number, since it uses less digits than its factorization.

127663900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14063 (or 14056 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 127663900 is about 11298.8450737232. The cubic root of 127663900 is about 503.5269297040.

The spelling of 127663900 in words is "one hundred twenty-seven million, six hundred sixty-three thousand, nine hundred".