1406655 has 12 divisors (see below), whose sum is σ = 2438280. Its totient is φ = 750192.

The previous prime is 1406651. The next prime is 1406677. The reversal of 1406655 is 5566041.

It is a happy number.

1406655 is a `hidden beast` number, since 1 + 4 + 0 + 6 + 655 = 666.

It is not a de Polignac number, because 1406655 - 2² = 1406651 is a prime.

1406655 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15585 + ... + 15674.

It is an arithmetic number, because the mean of its divisors is an integer number (203190).

2^1406655 is an apocalyptic number.

1406655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1406655 is a deficient number, since it is larger than the sum of its proper divisors (1031625).

1406655 is a wasteful number, since it uses less digits than its factorization.

1406655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31270 (or 31267 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1406655 is about 1186.0248732636. The cubic root of 1406655 is about 112.0458730030.

The spelling of 1406655 in words is "one million, four hundred six thousand, six hundred fifty-five".