2678453 has 4 divisors (see below), whose sum is σ = 2690688. Its totient is φ = 2666220.

The previous prime is 2678447. The next prime is 2678471. The reversal of 2678453 is 3548762.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2678453 - 2⁴ = 2678437 is a prime.

It is a super-2 number, since 2×2678453² = 14348220946418, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2²¹ + 6⁶ + 7 + 8 + 4³ + 5⁵ + 3¹² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5783 + ... + 6228.

It is an arithmetic number, because the mean of its divisors is an integer number (672672).

2^2678453 is an apocalyptic number.

It is an amenable number.

2678453 is a deficient number, since it is larger than the sum of its proper divisors (12235).

2678453 is a wasteful number, since it uses less digits than its factorization.

2678453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12234.

The product of its digits is 40320, while the sum is 35.

The square root of 2678453 is about 1636.5979958438. The cubic root of 2678453 is about 138.8762592842.

The spelling of 2678453 in words is "two million, six hundred seventy-eight thousand, four hundred fifty-three".