78869210 has 16 divisors (see below), whose sum is σ = 162245376. Its totient is φ = 27040848.

The previous prime is 78869207. The next prime is 78869213. The reversal of 78869210 is 1296887.

It is an interprime number because it is at equal distance from previous prime (78869207) and next prime (78869213).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78869213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563282 + ... + 563421.

It is an arithmetic number, because the mean of its divisors is an integer number (10140336).

Almost surely, 2^78869210 is an apocalyptic number.

78869210 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

78869210 is an abundant number, since it is smaller than the sum of its proper divisors (83376166).

78869210 is a wasteful number, since it uses less digits than its factorization.

78869210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126717.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 78869210 is about 8880.8338572456. The cubic root of 78869210 is about 428.8471190714.

The spelling of 78869210 in words is "seventy-eight million, eight hundred sixty-nine thousand, two hundred ten".