7988446 has 4 divisors (see below), whose sum is σ = 11982672. Its totient is φ = 3994222.

The previous prime is 7988443. The next prime is 7988459. The reversal of 7988446 is 6448897.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 7988396 and 7988405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7988441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1997110 + ... + 1997113.

It is an arithmetic number, because the mean of its divisors is an integer number (2995668).

Almost surely, 2^7988446 is an apocalyptic number.

7988446 is a deficient number, since it is larger than the sum of its proper divisors (3994226).

7988446 is a wasteful number, since it uses less digits than its factorization.

7988446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3994225.

The product of its digits is 387072, while the sum is 46.

The square root of 7988446 is about 2826.3839088135. The cubic root of 7988446 is about 199.9036702770.

The spelling of 7988446 in words is "seven million, nine hundred eighty-eight thousand, four hundred forty-six".