78525876 has 96 divisors (see below), whose sum is σ = 218792448. Its totient is φ = 21605760.

The previous prime is 78525859. The next prime is 78525901. The reversal of 78525876 is 67852587.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114631 + ... + 115313.

It is an arithmetic number, because the mean of its divisors is an integer number (2279088).

Almost surely, 2^78525876 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78525876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109396224).

78525876 is an abundant number, since it is smaller than the sum of its proper divisors (140266572).

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

78525876 is a wasteful number, since it uses less digits than its factorization.

78525876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 779 counting only the distinct ones).

The product of its digits is 940800, while the sum is 48.

The square root of 78525876 is about 8861.4827201773. The cubic root of 78525876 is about 428.2239271346.

Subtracting from 78525876 its reverse (67852587), we obtain a square (10673289 = 3267²).

It can be divided in two parts, 78525 and 876, that added together give a triangular number (79401 = T₃₉₈).

The spelling of 78525876 in words is "seventy-eight million, five hundred twenty-five thousand, eight hundred seventy-six".