127990793 has 8 divisors (see below), whose sum is σ = 149260800. Its totient is φ = 109706100.

The previous prime is 127990789. The next prime is 127990801. The reversal of 127990793 is 397099721.

It is not a de Polignac number, because 127990793 - 2² = 127990789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127992793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186233 + ... + 186918.

It is an arithmetic number, because the mean of its divisors is an integer number (18657600).

Almost surely, 2^127990793 is an apocalyptic number.

It is an amenable number.

127990793 is a deficient number, since it is larger than the sum of its proper divisors (21270007).

127990793 is an frugal number, since it uses more digits than its factorization.

127990793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373172 (or 373158 counting only the distinct ones).

The product of its (nonzero) digits is 214326, while the sum is 47.

The square root of 127990793 is about 11313.3015959091. The cubic root of 127990793 is about 503.9563362379.

The spelling of 127990793 in words is "one hundred twenty-seven million, nine hundred ninety thousand, seven hundred ninety-three".