127423447 has 4 divisors (see below), whose sum is σ = 127455496. Its totient is φ = 127391400.

The previous prime is 127423403. The next prime is 127423451. The reversal of 127423447 is 744324721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744324721 = 7 ⋅106332103.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127423447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127423847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9048 + ... + 18349.

It is an arithmetic number, because the mean of its divisors is an integer number (31863874).

Almost surely, 2^127423447 is an apocalyptic number.

127423447 is a deficient number, since it is larger than the sum of its proper divisors (32049).

127423447 is an equidigital number, since it uses as much as digits as its factorization.

127423447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32048.

The product of its digits is 37632, while the sum is 34.

The square root of 127423447 is about 11288.1994578409. The cubic root of 127423447 is about 503.2106026021.

The spelling of 127423447 in words is "one hundred twenty-seven million, four hundred twenty-three thousand, four hundred forty-seven".