2078655 has 8 divisors (see below), whose sum is σ = 3325872. Its totient is φ = 1108608.

The previous prime is 2078651. The next prime is 2078677. The reversal of 2078655 is 5568702.

It is a happy number.

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

It is not a de Polignac number, because 2078655 - 2² = 2078651 is a prime.

It is a d-powerful number, because it can be written as 2⁴ + 0 + 7⁶ + 8² + 6⁵ + 5² + 5⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2078651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69274 + ... + 69303.

It is an arithmetic number, because the mean of its divisors is an integer number (415734).

2^2078655 is an apocalyptic number.

2078655 is a deficient number, since it is larger than the sum of its proper divisors (1247217).

2078655 is a wasteful number, since it uses less digits than its factorization.

2078655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138585.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 2078655 is about 1441.7541399282. The cubic root of 2078655 is about 127.6225657231.

The spelling of 2078655 in words is "two million, seventy-eight thousand, six hundred fifty-five".