78000007 has 8 divisors (see below), whose sum is σ = 78769152. Its totient is φ = 77235000.

The previous prime is 78000001. The next prime is 78000011. The reversal of 78000007 is 70000087.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78000007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78000001) 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, 47128 + ... + 48754.

It is an arithmetic number, because the mean of its divisors is an integer number (9846144).

Almost surely, 2^78000007 is an apocalyptic number.

78000007 is a deficient number, since it is larger than the sum of its proper divisors (769145).

78000007 is a wasteful number, since it uses less digits than its factorization.

78000007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069.

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

The square root of 78000007 is about 8831.7612626248. The cubic root of 78000007 is about 427.2658809512.

The spelling of 78000007 in words is "seventy-eight million, seven", and thus it is an aban number and an uban number.