78629396 has 12 divisors (see below), whose sum is σ = 137709600. Its totient is φ = 39283800.

The previous prime is 78629393. The next prime is 78629401. The reversal of 78629396 is 69392687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78629393) 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 3 ways as a sum of consecutive naturals, for example, 1430 + ... + 12621.

It is an arithmetic number, because the mean of its divisors is an integer number (11475800).

Almost surely, 2^78629396 is an apocalyptic number.

It is an amenable number.

78629396 is a deficient number, since it is larger than the sum of its proper divisors (59080204).

78629396 is a wasteful number, since it uses less digits than its factorization.

78629396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15454 (or 15452 counting only the distinct ones).

The product of its digits is 979776, while the sum is 50.

The square root of 78629396 is about 8867.3218053705. The cubic root of 78629396 is about 428.4120191692.

The spelling of 78629396 in words is "seventy-eight million, six hundred twenty-nine thousand, three hundred ninety-six".