78325760 has 48 divisors (see below), whose sum is σ = 187960500. Its totient is φ = 31326208.

The previous prime is 78325727. The next prime is 78325811. The reversal of 78325760 is 6752387.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68690944 + 9634816 = 8288^2 + 3104^2 .

It is a super-2 number, since 2×78325760² = 12269849359155200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6416 + ... + 14064.

Almost surely, 2^78325760 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 78325760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93980250).

78325760 is an abundant number, since it is smaller than the sum of its proper divisors (109634740).

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

78325760 is an equidigital number, since it uses as much as digits as its factorization.

78325760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7676 (or 7656 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 78325760 is about 8850.1841788745. The cubic root of 78325760 is about 427.8598545434.

The spelling of 78325760 in words is "seventy-eight million, three hundred twenty-five thousand, seven hundred sixty".