7980999 has 8 divisors (see below), whose sum is σ = 11459952. Its totient is φ = 4911360.

The previous prime is 7980997. The next prime is 7981013. The reversal of 7980999 is 9990897.

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

It is not a de Polignac number, because 7980999 - 2¹ = 7980997 is a prime.

It is a zygodrome in base 2.

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 7 ways as a sum of consecutive naturals, for example, 102282 + ... + 102359.

It is an arithmetic number, because the mean of its divisors is an integer number (1432494).

Almost surely, 2^7980999 is an apocalyptic number.

7980999 is a deficient number, since it is larger than the sum of its proper divisors (3478953).

7980999 is a wasteful number, since it uses less digits than its factorization.

7980999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204657.

The product of its (nonzero) digits is 367416, while the sum is 51.

The square root of 7980999 is about 2825.0661939148. The cubic root of 7980999 is about 199.8415328072.

The spelling of 7980999 in words is "seven million, nine hundred eighty thousand, nine hundred ninety-nine".