78066087 has 8 divisors (see below), whose sum is σ = 113550720. Its totient is φ = 47312760.

The previous prime is 78066061. The next prime is 78066137.

78066087 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 78066087 - 2⁷ = 78065959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78066007) 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, 1182787 + ... + 1182852.

It is an arithmetic number, because the mean of its divisors is an integer number (14193840).

Almost surely, 2^78066087 is an apocalyptic number.

78066087 is a deficient number, since it is larger than the sum of its proper divisors (35484633).

78066087 is a wasteful number, since it uses less digits than its factorization.

78066087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365653.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 78066087 is about 8835.5015137795. The cubic root of 78066087 is about 427.3865038471.

The spelling of 78066087 in words is "seventy-eight million, sixty-six thousand, eighty-seven".