78625386 has 48 divisors (see below), whose sum is σ = 195871104. Its totient is φ = 22328352.

The previous prime is 78625373. The next prime is 78625403. The reversal of 78625386 is 68352687.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19995 + ... + 23601.

It is an arithmetic number, because the mean of its divisors is an integer number (4080648).

Almost surely, 2^78625386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78625386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97935552).

78625386 is an abundant number, since it is smaller than the sum of its proper divisors (117245718).

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

78625386 is a wasteful number, since it uses less digits than its factorization.

78625386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3795 (or 3792 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 78625386 is about 8867.0956913749. The cubic root of 78625386 is about 428.4047362212.

The spelling of 78625386 in words is "seventy-eight million, six hundred twenty-five thousand, three hundred eighty-six".