78047088 has 160 divisors (see below), whose sum is σ = 243793920. Its totient is φ = 21047040.

The previous prime is 78047087. The next prime is 78047089. The reversal of 78047088 is 88074087.

It is an interprime number because it is at equal distance from previous prime (78047087) and next prime (78047089).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78047083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 614481 + ... + 614607.

It is an arithmetic number, because the mean of its divisors is an integer number (1523712).

Almost surely, 2^78047088 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 78047088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121896960).

78047088 is an abundant number, since it is smaller than the sum of its proper divisors (165746832).

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

78047088 is a wasteful number, since it uses less digits than its factorization.

78047088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The square root of 78047088 is about 8834.4262971627. The cubic root of 78047088 is about 427.3518299133.

The spelling of 78047088 in words is "seventy-eight million, forty-seven thousand, eighty-eight".