78259608 has 160 divisors (see below), whose sum is σ = 255087360. Its totient is φ = 22044960.

The previous prime is 78259591. The next prime is 78259609. The reversal of 78259608 is 80695287.

It is a super-2 number, since 2×78259608² = 12249132488627328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78259609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1102213 + ... + 1102283.

It is an arithmetic number, because the mean of its divisors is an integer number (1594296).

Almost surely, 2^78259608 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 78259608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127543680).

78259608 is an abundant number, since it is smaller than the sum of its proper divisors (176827752).

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

78259608 is an frugal number, since it uses more digits than its factorization.

78259608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 78259608 is about 8846.4460660765. The cubic root of 78259608 is about 427.7393673326.

The spelling of 78259608 in words is "seventy-eight million, two hundred fifty-nine thousand, six hundred eight".