127621317 has 8 divisors (see below), whose sum is σ = 170824896. Its totient is φ = 84749312.

The previous prime is 127621313. The next prime is 127621343. The reversal of 127621317 is 713126721.

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 127621317 - 2² = 127621313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127621313) 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, 81993 + ... + 83534.

It is an arithmetic number, because the mean of its divisors is an integer number (21353112).

Almost surely, 2^127621317 is an apocalyptic number.

It is an amenable number.

127621317 is a deficient number, since it is larger than the sum of its proper divisors (43203579).

127621317 is a wasteful number, since it uses less digits than its factorization.

127621317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165787.

The product of its digits is 3528, while the sum is 30.

The square root of 127621317 is about 11296.9605204232. The cubic root of 127621317 is about 503.4709387473.

The spelling of 127621317 in words is "one hundred twenty-seven million, six hundred twenty-one thousand, three hundred seventeen".