7984090 has 8 divisors (see below), whose sum is σ = 14371380. Its totient is φ = 3193632.

The previous prime is 7984037. The next prime is 7984121. The reversal of 7984090 is 904897.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7901721 + 82369 = 2811^2 + 287^2 .

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, 399195 + ... + 399214.

Almost surely, 2^7984090 is an apocalyptic number.

7984090 is a deficient number, since it is larger than the sum of its proper divisors (6387290).

7984090 is a wasteful number, since it uses less digits than its factorization.

7984090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798416.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 7984090 is about 2825.6132077834. The cubic root of 7984090 is about 199.8673286777.

The spelling of 7984090 in words is "seven million, nine hundred eighty-four thousand, ninety".