78075049 has 8 divisors (see below), whose sum is σ = 84687680. Its totient is φ = 71549136.

The previous prime is 78075043. The next prime is 78075071. The reversal of 78075049 is 94057087.

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 78075049 - 2⁵ = 78075017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78075043) 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, 19797 + ... + 23410.

It is an arithmetic number, because the mean of its divisors is an integer number (10585960).

Almost surely, 2^78075049 is an apocalyptic number.

It is an amenable number.

78075049 is a deficient number, since it is larger than the sum of its proper divisors (6612631).

78075049 is a wasteful number, since it uses less digits than its factorization.

78075049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43359.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 78075049 is about 8836.0086577595. The cubic root of 78075049 is about 427.4028579022.

The spelling of 78075049 in words is "seventy-eight million, seventy-five thousand, forty-nine".