78007000 has 32 divisors (see below), whose sum is σ = 182538720. Its totient is φ = 31202400.

The previous prime is 78006991. The next prime is 78007001. The reversal of 78007000 is 70087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78007001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38004 + ... + 40003.

It is an arithmetic number, because the mean of its divisors is an integer number (5704335).

Almost surely, 2^78007000 is an apocalyptic number.

It is an amenable number.

78007000 is an abundant number, since it is smaller than the sum of its proper divisors (104531720).

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

78007000 is a wasteful number, since it uses less digits than its factorization.

78007000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78028 (or 78014 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 78007000 is about 8832.1571543989. The cubic root of 78007000 is about 427.2786492451.

Adding to 78007000 its reverse (70087), we get a palindrome (78077087).

The spelling of 78007000 in words is "seventy-eight million, seven thousand".