6739990 has 32 divisors (see below), whose sum is σ = 13172544. Its totient is φ = 2472960.

The previous prime is 6739987. The next prime is 6740021. The reversal of 6739990 is 999376.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6487 + ... + 7453.

It is an arithmetic number, because the mean of its divisors is an integer number (411642).

Almost surely, 2^6739990 is an apocalyptic number.

6739990 is a deficient number, since it is larger than the sum of its proper divisors (6432554).

6739990 is a wasteful number, since it uses less digits than its factorization.

6739990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032.

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 6739990 is about 2596.1490712207. The cubic root of 6739990 is about 188.8946904536.

The spelling of 6739990 in words is "six million, seven hundred thirty-nine thousand, nine hundred ninety".