6749990 has 32 divisors (see below), whose sum is σ = 13214880. Its totient is φ = 2467584.

The previous prime is 6749989. The next prime is 6750001. The reversal of 6749990 is 999476.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17621 + ... + 17999.

It is an arithmetic number, because the mean of its divisors is an integer number (412965).

Almost surely, 2^6749990 is an apocalyptic number.

6749990 is a deficient number, since it is larger than the sum of its proper divisors (6464890).

6749990 is a wasteful number, since it uses less digits than its factorization.

6749990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 6749990 is about 2598.0742868517. The cubic root of 6749990 is about 188.9880641567.

The spelling of 6749990 in words is "six million, seven hundred forty-nine thousand, nine hundred ninety".