127020797 has 4 divisors (see below), whose sum is σ = 127429536. Its totient is φ = 126612060.

The previous prime is 127020767. The next prime is 127020799. The reversal of 127020797 is 797020721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 127020797 - 2²⁰ = 125972221 is a prime.

It is a super-2 number, since 2×127020797² = 32268565741030418, which contains 22 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 (127020799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203903 + ... + 204524.

It is an arithmetic number, because the mean of its divisors is an integer number (31857384).

Almost surely, 2^127020797 is an apocalyptic number.

It is an amenable number.

127020797 is a deficient number, since it is larger than the sum of its proper divisors (408739).

127020797 is an equidigital number, since it uses as much as digits as its factorization.

127020797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408738.

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 127020797 is about 11270.3503494789. The cubic root of 127020797 is about 502.6800054760.

The spelling of 127020797 in words is "one hundred twenty-seven million, twenty thousand, seven hundred ninety-seven".