127920467 has 4 divisors (see below), whose sum is σ = 128115240. Its totient is φ = 127725696.

The previous prime is 127920431. The next prime is 127920491. The reversal of 127920467 is 764029721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 127920467 - 2¹⁴ = 127904083 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 127920467.

It is not an unprimeable number, because it can be changed into a prime (127920967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96398 + ... + 97715.

It is an arithmetic number, because the mean of its divisors is an integer number (32028810).

Almost surely, 2^127920467 is an apocalyptic number.

127920467 is a deficient number, since it is larger than the sum of its proper divisors (194773).

127920467 is an equidigital number, since it uses as much as digits as its factorization.

127920467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194772.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 127920467 is about 11310.1930575919. The cubic root of 127920467 is about 503.8640178098.

The spelling of 127920467 in words is "one hundred twenty-seven million, nine hundred twenty thousand, four hundred sixty-seven".