127320399 has 12 divisors (see below), whose sum is σ = 184834000. Its totient is φ = 84452544.

The previous prime is 127320383. The next prime is 127320437. The reversal of 127320399 is 993023721.

It is not a de Polignac number, because 127320399 - 2⁴ = 127320383 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 (127320799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33754 + ... + 37335.

Almost surely, 2^127320399 is an apocalyptic number.

127320399 is a deficient number, since it is larger than the sum of its proper divisors (57513601).

127320399 is a wasteful number, since it uses less digits than its factorization.

127320399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71294 (or 71291 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 127320399 is about 11283.6341220371. The cubic root of 127320399 is about 503.0749163473.

The spelling of 127320399 in words is "one hundred twenty-seven million, three hundred twenty thousand, three hundred ninety-nine".