127790 has 16 divisors (see below), whose sum is σ = 247968. Its totient is φ = 47136.

The previous prime is 127781. The next prime is 127807. The reversal of 127790 is 97721.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362 + ... + 621.

It is an arithmetic number, because the mean of its divisors is an integer number (15498).

2¹²⁷⁷⁹⁰ is an apocalyptic number.

127790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127790 is a deficient number, since it is larger than the sum of its proper divisors (120178).

127790 is a wasteful number, since it uses less digits than its factorization.

127790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003.

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 127790 is about 357.4772720048. The cubic root of 127790 is about 50.3692661368.

The spelling of 127790 in words is "one hundred twenty-seven thousand, seven hundred ninety".