127397880 has 128 divisors (see below), whose sum is σ = 427680000. Its totient is φ = 33731712.

The previous prime is 127397873. The next prime is 127397909. The reversal of 127397880 is 88793721.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192991 + ... + 193649.

It is an arithmetic number, because the mean of its divisors is an integer number (3341250).

Almost surely, 2^127397880 is an apocalyptic number.

127397880 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 127397880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213840000).

127397880 is an abundant number, since it is smaller than the sum of its proper divisors (300282120).

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

127397880 is a wasteful number, since it uses less digits than its factorization.

127397880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 127397880 is about 11287.0669352139. The cubic root of 127397880 is about 503.1769446259.

The spelling of 127397880 in words is "one hundred twenty-seven million, three hundred ninety-seven thousand, eight hundred eighty".