78580396 has 6 divisors (see below), whose sum is σ = 137515700. Its totient is φ = 39290196.

The previous prime is 78580391. The next prime is 78580417. The reversal of 78580396 is 69308587.

It is not an unprimeable number, because it can be changed into a prime (78580391) 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 as a sum of consecutive naturals, namely, 9822546 + ... + 9822553.

Almost surely, 2^78580396 is an apocalyptic number.

It is an amenable number.

78580396 is a deficient number, since it is larger than the sum of its proper divisors (58935304).

78580396 is a wasteful number, since it uses less digits than its factorization.

78580396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19645103 (or 19645101 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 78580396 is about 8864.5584210382. The cubic root of 78580396 is about 428.3230085611.

The spelling of 78580396 in words is "seventy-eight million, five hundred eighty thousand, three hundred ninety-six".