7980609 has 64 divisors (see below), whose sum is σ = 14450688. Its totient is φ = 3801600.

The previous prime is 7980601. The next prime is 7980617. The reversal of 7980609 is 9060897.

It is an interprime number because it is at equal distance from previous prime (7980601) and next prime (7980617).

It is not a de Polignac number, because 7980609 - 2³ = 7980601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (7980601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 194629 + ... + 194669.

It is an arithmetic number, because the mean of its divisors is an integer number (225792).

Almost surely, 2^7980609 is an apocalyptic number.

It is an amenable number.

7980609 is a deficient number, since it is larger than the sum of its proper divisors (6470079).

7980609 is a wasteful number, since it uses less digits than its factorization.

7980609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 7980609 is about 2824.9971681402. The cubic root of 7980609 is about 199.8382775979.

The spelling of 7980609 in words is "seven million, nine hundred eighty thousand, six hundred nine".