2643698 has 16 divisors (see below), whose sum is σ = 4320000. Its totient is φ = 1208592.

The previous prime is 2643691. The next prime is 2643709. The reversal of 2643698 is 8963462.

2643698 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a d-powerful number, because it can be written as 2¹⁹ + 6⁵ + 4³ + 3⁸ + 6⁵ + 9² + 8⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643691) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 98 + ... + 2301.

It is an arithmetic number, because the mean of its divisors is an integer number (270000).

2^2643698 is an apocalyptic number.

2643698 is a deficient number, since it is larger than the sum of its proper divisors (1676302).

2643698 is a wasteful number, since it uses less digits than its factorization.

2643698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449.

The product of its digits is 62208, while the sum is 38.

The square root of 2643698 is about 1625.9452635313. The cubic root of 2643698 is about 138.2729666769.

The spelling of 2643698 in words is "two million, six hundred forty-three thousand, six hundred ninety-eight".