7980998 has 8 divisors (see below), whose sum is σ = 12017808. Its totient is φ = 3975064.

The previous prime is 7980997. The next prime is 7981013. The reversal of 7980998 is 8990897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7980997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7061 + ... + 8112.

It is an arithmetic number, because the mean of its divisors is an integer number (1502226).

Almost surely, 2^7980998 is an apocalyptic number.

7980998 is a deficient number, since it is larger than the sum of its proper divisors (4036810).

7980998 is a wasteful number, since it uses less digits than its factorization.

7980998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15438.

The product of its (nonzero) digits is 326592, while the sum is 50.

The square root of 7980998 is about 2825.0660169277. The cubic root of 7980998 is about 199.8415244607.

The spelling of 7980998 in words is "seven million, nine hundred eighty thousand, nine hundred ninety-eight".