78631496 has 16 divisors (see below), whose sum is σ = 147552300. Its totient is φ = 39284224.

The previous prime is 78631447. The next prime is 78631529. The reversal of 78631496 is 69413687.

It can be written as a sum of positive squares in 2 ways, for example, as 77968900 + 662596 = 8830^2 + 814^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9260 + ... + 15588.

Almost surely, 2^78631496 is an apocalyptic number.

It is an amenable number.

78631496 is a deficient number, since it is larger than the sum of its proper divisors (68920804).

78631496 is a wasteful number, since it uses less digits than its factorization.

78631496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7888 (or 7884 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 78631496 is about 8867.4402168833. The cubic root of 78631496 is about 428.4158330831.

The spelling of 78631496 in words is "seventy-eight million, six hundred thirty-one thousand, four hundred ninety-six".