127720471 has 8 divisors (see below), whose sum is σ = 128991744. Its totient is φ = 126453600.

The previous prime is 127720421. The next prime is 127720477. The reversal of 127720471 is 174027721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 127720471 - 2⁷ = 127720343 is a prime.

It is a super-3 number, since 3×127720471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127720477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97521 + ... + 98821.

It is an arithmetic number, because the mean of its divisors is an integer number (16123968).

Almost surely, 2^127720471 is an apocalyptic number.

127720471 is a deficient number, since it is larger than the sum of its proper divisors (1271273).

127720471 is a wasteful number, since it uses less digits than its factorization.

127720471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201.

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 127720471 is about 11301.3481939103. The cubic root of 127720471 is about 503.6012937581.

The spelling of 127720471 in words is "one hundred twenty-seven million, seven hundred twenty thousand, four hundred seventy-one".