78936430 has 8 divisors (see below), whose sum is σ = 142085592. Its totient is φ = 31574568.

The previous prime is 78936427. The next prime is 78936461. The reversal of 78936430 is 3463987.

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

It is a super-3 number, since 3×78936430³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3946812 + ... + 3946831.

It is an arithmetic number, because the mean of its divisors is an integer number (17760699).

Almost surely, 2^78936430 is an apocalyptic number.

78936430 is a deficient number, since it is larger than the sum of its proper divisors (63149162).

78936430 is a wasteful number, since it uses less digits than its factorization.

78936430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7893650.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 78936430 is about 8884.6176057273. The cubic root of 78936430 is about 428.9689195284.

The spelling of 78936430 in words is "seventy-eight million, nine hundred thirty-six thousand, four hundred thirty".