127890385 has 16 divisors (see below), whose sum is σ = 179473536. Its totient is φ = 85655808.

The previous prime is 127890331. The next prime is 127890403. The reversal of 127890385 is 583098721.

It is not a de Polignac number, because 127890385 - 2⁹ = 127889873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40984 + ... + 43993.

It is an arithmetic number, because the mean of its divisors is an integer number (11217096).

Almost surely, 2^127890385 is an apocalyptic number.

It is an amenable number.

127890385 is a deficient number, since it is larger than the sum of its proper divisors (51583151).

127890385 is an equidigital number, since it uses as much as digits as its factorization.

127890385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85032.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 127890385 is about 11308.8631170423. The cubic root of 127890385 is about 503.8245181998.

The spelling of 127890385 in words is "one hundred twenty-seven million, eight hundred ninety thousand, three hundred eighty-five".