2153678 has 8 divisors (see below), whose sum is σ = 3236760. Its totient is φ = 1074760.

The previous prime is 2153647. The next prime is 2153693. The reversal of 2153678 is 8763512.

It is a happy number.

2153678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388 + ... + 2496.

It is an arithmetic number, because the mean of its divisors is an integer number (404595).

2^2153678 is an apocalyptic number.

2153678 is a deficient number, since it is larger than the sum of its proper divisors (1083082).

2153678 is a wasteful number, since it uses less digits than its factorization.

2153678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082.

The product of its digits is 10080, while the sum is 32.

The square root of 2153678 is about 1467.5414815262. The cubic root of 2153678 is about 129.1398439390.

The spelling of 2153678 in words is "two million, one hundred fifty-three thousand, six hundred seventy-eight".