78831260 has 24 divisors (see below), whose sum is σ = 165863376. Its totient is φ = 31472000.

The previous prime is 78831253. The next prime is 78831271. The reversal of 78831260 is 6213887.

It is a super-4 number, since 4×78831260⁴ (a number of 33 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78831260.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7760 + ... + 14760.

It is an arithmetic number, because the mean of its divisors is an integer number (6910974).

Almost surely, 2^78831260 is an apocalyptic number.

It is an amenable number.

78831260 is an abundant number, since it is smaller than the sum of its proper divisors (87032116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78831260 is a wasteful number, since it uses less digits than its factorization.

78831260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7573 (or 7571 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 78831260 is about 8878.6969764713. The cubic root of 78831260 is about 428.7783243364.

The spelling of 78831260 in words is "seventy-eight million, eight hundred thirty-one thousand, two hundred sixty".