7289998 has 4 divisors (see below), whose sum is σ = 10935000. Its totient is φ = 3644998.

The previous prime is 7289993. The next prime is 7290001. The reversal of 7289998 is 8999827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8999827 = 31 ⋅290317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7289993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822498 + ... + 1822501.

It is an arithmetic number, because the mean of its divisors is an integer number (2733750).

Almost surely, 2^7289998 is an apocalyptic number.

7289998 is a deficient number, since it is larger than the sum of its proper divisors (3645002).

7289998 is a wasteful number, since it uses less digits than its factorization.

7289998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3645001.

The product of its digits is 653184, while the sum is 52.

The square root of 7289998 is about 2699.9996296296. Note that the first 3 decimals coincide. The cubic root of 7289998 is about 193.8991043709.

The spelling of 7289998 in words is "seven million, two hundred eighty-nine thousand, nine hundred ninety-eight".