127406 has 4 divisors (see below), whose sum is σ = 191112. Its totient is φ = 63702.

The previous prime is 127403. The next prime is 127423. The reversal of 127406 is 604721.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127403) by changing a digit.

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 as a sum of consecutive naturals, namely, 31850 + ... + 31853.

It is an arithmetic number, because the mean of its divisors is an integer number (47778).

2¹²⁷⁴⁰⁶ is an apocalyptic number.

127406 is a deficient number, since it is larger than the sum of its proper divisors (63706).

127406 is an equidigital number, since it uses as much as digits as its factorization.

127406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63705.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 127406 is about 356.9397708298. The cubic root of 127406 is about 50.3187634783.

The spelling of 127406 in words is "one hundred twenty-seven thousand, four hundred six".