78480297 has 12 divisors (see below), whose sum is σ = 129554880. Its totient is φ = 44845848.

The previous prime is 78480277. The next prime is 78480299. The reversal of 78480297 is 79208487.

It is not a de Polignac number, because 78480297 - 2¹¹ = 78478249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78480299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 622797 + ... + 622922.

It is an arithmetic number, because the mean of its divisors is an integer number (10796240).

Almost surely, 2^78480297 is an apocalyptic number.

It is an amenable number.

78480297 is a deficient number, since it is larger than the sum of its proper divisors (51074583).

78480297 is a wasteful number, since it uses less digits than its factorization.

78480297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245732 (or 1245729 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 78480297 is about 8858.9105989394. The cubic root of 78480297 is about 428.1410593511.

The spelling of 78480297 in words is "seventy-eight million, four hundred eighty thousand, two hundred ninety-seven".