127661477 has 8 divisors (see below), whose sum is σ = 133591680. Its totient is φ = 121762960.

The previous prime is 127661461. The next prime is 127661489. The reversal of 127661477 is 774166721.

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 127661477 - 2⁴ = 127661461 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 (127661497) 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, 527 + ... + 15987.

It is an arithmetic number, because the mean of its divisors is an integer number (16698960).

Almost surely, 2^127661477 is an apocalyptic number.

It is an amenable number.

127661477 is a deficient number, since it is larger than the sum of its proper divisors (5930203).

127661477 is a wasteful number, since it uses less digits than its factorization.

127661477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15843.

The product of its digits is 98784, while the sum is 41.

The square root of 127661477 is about 11298.7378498662. The cubic root of 127661477 is about 503.5237441168.

The spelling of 127661477 in words is "one hundred twenty-seven million, six hundred sixty-one thousand, four hundred seventy-seven".