78522080 has 96 divisors (see below), whose sum is σ = 228360384. Its totient is φ = 24846336.

The previous prime is 78522077. The next prime is 78522083. The reversal of 78522080 is 8022587.

It is an interprime number because it is at equal distance from previous prime (78522077) and next prime (78522083).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78522083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11864 + ... + 17256.

It is an arithmetic number, because the mean of its divisors is an integer number (2378754).

Almost surely, 2^78522080 is an apocalyptic number.

78522080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78522080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114180192).

78522080 is an abundant number, since it is smaller than the sum of its proper divisors (149838304).

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

78522080 is a wasteful number, since it uses less digits than its factorization.

78522080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5428 (or 5420 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 78522080 is about 8861.2685322137. The cubic root of 78522080 is about 428.2170268010.

The spelling of 78522080 in words is "seventy-eight million, five hundred twenty-two thousand, eighty".