78956830 has 8 divisors (see below), whose sum is σ = 142122312. Its totient is φ = 31582728.

The previous prime is 78956807. The next prime is 78956831. The reversal of 78956830 is 3865987.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78956831) 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, 3947832 + ... + 3947851.

It is an arithmetic number, because the mean of its divisors is an integer number (17765289).

Almost surely, 2^78956830 is an apocalyptic number.

78956830 is a deficient number, since it is larger than the sum of its proper divisors (63165482).

78956830 is a wasteful number, since it uses less digits than its factorization.

78956830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7895690.

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

The square root of 78956830 is about 8885.7655832235. The cubic root of 78956830 is about 429.0058699885.

The spelling of 78956830 in words is "seventy-eight million, nine hundred fifty-six thousand, eight hundred thirty".