127648394 has 4 divisors (see below), whose sum is σ = 191472594. Its totient is φ = 63824196.

The previous prime is 127648373. The next prime is 127648399. The reversal of 127648394 is 493846721.

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

It can be written as a sum of positive squares in only one way, i.e., 101505625 + 26142769 = 10075^2 + 5113^2 .

It is a super-2 number, since 2×127648394² = 32588224981558472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127648399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31912097 + ... + 31912100.

Almost surely, 2^127648394 is an apocalyptic number.

127648394 is a deficient number, since it is larger than the sum of its proper divisors (63824200).

127648394 is an equidigital number, since it uses as much as digits as its factorization.

127648394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63824199.

The product of its digits is 290304, while the sum is 44.

The square root of 127648394 is about 11298.1588765604. The cubic root of 127648394 is about 503.5065428269.

The spelling of 127648394 in words is "one hundred twenty-seven million, six hundred forty-eight thousand, three hundred ninety-four".