7990648 has 8 divisors (see below), whose sum is σ = 14982480. Its totient is φ = 3995320.

The previous prime is 7990643. The next prime is 7990649. The reversal of 7990648 is 8460997.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×7990648³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7990643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499408 + ... + 499423.

It is an arithmetic number, because the mean of its divisors is an integer number (1872810).

Almost surely, 2^7990648 is an apocalyptic number.

It is an amenable number.

7990648 is a deficient number, since it is larger than the sum of its proper divisors (6991832).

7990648 is a wasteful number, since it uses less digits than its factorization.

7990648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998837 (or 998833 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 7990648 is about 2826.7734256569. The cubic root of 7990648 is about 199.9220362789.

The spelling of 7990648 in words is "seven million, nine hundred ninety thousand, six hundred forty-eight".