2643451 has 6 divisors (see below), whose sum is σ = 2790060. Its totient is φ = 2497608.

The previous prime is 2643439. The next prime is 2643457. The reversal of 2643451 is 1543462.

It is a de Polignac number, because none of the positive numbers 2^k-2643451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2643457) 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 5 ways as a sum of consecutive naturals, for example, 6901 + ... + 7273.

It is an arithmetic number, because the mean of its divisors is an integer number (465010).

2^2643451 is an apocalyptic number.

2643451 is a deficient number, since it is larger than the sum of its proper divisors (146609).

2643451 is an frugal number, since it uses more digits than its factorization.

2643451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765 (or 392 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 2643451 is about 1625.8693059407. The cubic root of 2643451 is about 138.2686602740.

The spelling of 2643451 in words is "two million, six hundred forty-three thousand, four hundred fifty-one".