127963957 has 4 divisors (see below), whose sum is σ = 139597056. Its totient is φ = 116330860.

The previous prime is 127963951. The next prime is 127963967. The reversal of 127963957 is 759369721.

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, and also an emirpimes, since its reverse is a distinct semiprime: 759369721 = 11 ⋅69033611.

It is a cyclic number.

It is not a de Polignac number, because 127963957 - 2²³ = 119575349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 127963957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127963951) 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 3 ways as a sum of consecutive naturals, for example, 5816533 + ... + 5816554.

It is an arithmetic number, because the mean of its divisors is an integer number (34899264).

Almost surely, 2^127963957 is an apocalyptic number.

It is an amenable number.

127963957 is a deficient number, since it is larger than the sum of its proper divisors (11633099).

127963957 is a wasteful number, since it uses less digits than its factorization.

127963957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11633098.

The product of its digits is 714420, while the sum is 49.

The square root of 127963957 is about 11312.1154962279. The cubic root of 127963957 is about 503.9211120439.

The spelling of 127963957 in words is "one hundred twenty-seven million, nine hundred sixty-three thousand, nine hundred fifty-seven".