78078007 has 8 divisors (see below), whose sum is σ = 90066816. Its totient is φ = 66297912.

The previous prime is 78077999. The next prime is 78078041. The reversal of 78078007 is 70087087.

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

It is a cyclic number.

It is not a de Polignac number, because 78078007 - 2³ = 78077999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78078097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51373 + ... + 52870.

It is an arithmetic number, because the mean of its divisors is an integer number (11258352).

Almost surely, 2^78078007 is an apocalyptic number.

78078007 is a deficient number, since it is larger than the sum of its proper divisors (11988809).

78078007 is a wasteful number, since it uses less digits than its factorization.

78078007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104357.

The product of its (nonzero) digits is 21952, while the sum is 37.

The square root of 78078007 is about 8836.1760394415. The cubic root of 78078007 is about 427.4082554512.

It can be divided in two parts, 780 and 78007, that added together give a palindrome (78787).

The spelling of 78078007 in words is "seventy-eight million, seventy-eight thousand, seven".