2685398 has 4 divisors (see below), whose sum is σ = 4028100. Its totient is φ = 1342698.

The previous prime is 2685383. The next prime is 2685401. The reversal of 2685398 is 8935862.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2685398² = 14422724836808, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 671348 + ... + 671351.

It is an arithmetic number, because the mean of its divisors is an integer number (1007025).

2^2685398 is an apocalyptic number.

2685398 is a deficient number, since it is larger than the sum of its proper divisors (1342702).

2685398 is a wasteful number, since it uses less digits than its factorization.

2685398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342701.

The product of its digits is 103680, while the sum is 41.

The square root of 2685398 is about 1638.7184016786. The cubic root of 2685398 is about 138.9961871183.

The spelling of 2685398 in words is "two million, six hundred eighty-five thousand, three hundred ninety-eight".