127720466 has 8 divisors (see below), whose sum is σ = 198187020. Its totient is φ = 61658128.

The previous prime is 127720421. The next prime is 127720477. The reversal of 127720466 is 664027721.

It can be written as a sum of positive squares in 2 ways, for example, as 114939841 + 12780625 = 10721^2 + 3575^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1100981 + ... + 1101096.

Almost surely, 2^127720466 is an apocalyptic number.

127720466 is a deficient number, since it is larger than the sum of its proper divisors (70466554).

127720466 is a wasteful number, since it uses less digits than its factorization.

127720466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202108.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 127720466 is about 11301.3479726978. The cubic root of 127720466 is about 503.6012871864.

The spelling of 127720466 in words is "one hundred twenty-seven million, seven hundred twenty thousand, four hundred sixty-six".