127672499 has 4 divisors (see below), whose sum is σ = 135182664. Its totient is φ = 120162336.

The previous prime is 127672487. The next prime is 127672537. The reversal of 127672499 is 994276721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 994276721 = 1013 ⋅981517.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127672499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127672199) 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, 3755057 + ... + 3755090.

It is an arithmetic number, because the mean of its divisors is an integer number (33795666).

Almost surely, 2^127672499 is an apocalyptic number.

127672499 is a deficient number, since it is larger than the sum of its proper divisors (7510165).

127672499 is an equidigital number, since it uses as much as digits as its factorization.

127672499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7510164.

The product of its digits is 381024, while the sum is 47.

The square root of 127672499 is about 11299.2255929333. The cubic root of 127672499 is about 503.5382347293.

The spelling of 127672499 in words is "one hundred twenty-seven million, six hundred seventy-two thousand, four hundred ninety-nine".