127617047 has 4 divisors (see below), whose sum is σ = 127935696. Its totient is φ = 127298400.

The previous prime is 127617037. The next prime is 127617073. The reversal of 127617047 is 740716721.

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

It is a cyclic number.

It is not a de Polignac number, because 127617047 - 2¹⁰ = 127616023 is a prime.

It is a super-2 number, since 2×127617047² = 32572221370000418, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127616998 and 127617016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127617037) 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, 158723 + ... + 159524.

It is an arithmetic number, because the mean of its divisors is an integer number (31983924).

Almost surely, 2^127617047 is an apocalyptic number.

127617047 is a deficient number, since it is larger than the sum of its proper divisors (318649).

127617047 is an equidigital number, since it uses as much as digits as its factorization.

127617047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318648.

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 127617047 is about 11296.7715299549. The cubic root of 127617047 is about 503.4653235807.

The spelling of 127617047 in words is "one hundred twenty-seven million, six hundred seventeen thousand, forty-seven".