78044087 has 8 divisors (see below), whose sum is σ = 85380480. Its totient is φ = 70747960.

The previous prime is 78044053. The next prime is 78044159.

78044087 is nontrivially palindromic in base 10.

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 78044087 - 2¹² = 78039991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78044087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78044287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5933 + ... + 13830.

It is an arithmetic number, because the mean of its divisors is an integer number (10672560).

Almost surely, 2^78044087 is an apocalyptic number.

78044087 is a deficient number, since it is larger than the sum of its proper divisors (7336393).

78044087 is a wasteful number, since it uses less digits than its factorization.

78044087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20133.

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 78044087 is about 8834.2564486209. The cubic root of 78044087 is about 427.3463524538.

The spelling of 78044087 in words is "seventy-eight million, forty-four thousand, eighty-seven".