6893890 has 8 divisors (see below), whose sum is σ = 12409020. Its totient is φ = 2757552.

The previous prime is 6893879. The next prime is 6893911. The reversal of 6893890 is 983986.

It can be written as a sum of positive squares in 2 ways, for example, as 6702921 + 190969 = 2589^2 + 437^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344685 + ... + 344704.

Almost surely, 2^6893890 is an apocalyptic number.

6893890 is a deficient number, since it is larger than the sum of its proper divisors (5515130).

6893890 is a wasteful number, since it uses less digits than its factorization.

6893890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689396.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 6893890 is about 2625.6218311097. The cubic root of 6893890 is about 190.3216159533.

The spelling of 6893890 in words is "six million, eight hundred ninety-three thousand, eight hundred ninety".