7967489 has 8 divisors (see below), whose sum is σ = 8444520. Its totient is φ = 7504000.

The previous prime is 7967461. The next prime is 7967497. The reversal of 7967489 is 9847697.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43264 + 7924225 = 208^2 + 2815^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7967489 - 2¹² = 7963393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7967429) 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, 2162 + ... + 4539.

It is an arithmetic number, because the mean of its divisors is an integer number (1055565).

Almost surely, 2^7967489 is an apocalyptic number.

It is an amenable number.

7967489 is a deficient number, since it is larger than the sum of its proper divisors (477031).

7967489 is a wasteful number, since it uses less digits than its factorization.

7967489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6771.

The product of its digits is 762048, while the sum is 50.

The square root of 7967489 is about 2822.6740867482. The cubic root of 7967489 is about 199.7287071674.

The spelling of 7967489 in words is "seven million, nine hundred sixty-seven thousand, four hundred eighty-nine".