78057914 has 32 divisors (see below), whose sum is σ = 136515456. Its totient is φ = 33080320.

The previous prime is 78057913. The next prime is 78057919. The reversal of 78057914 is 41975087.

It is not an unprimeable number, because it can be changed into a prime (78057911) 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 15 ways as a sum of consecutive naturals, for example, 41339 + ... + 43185.

It is an arithmetic number, because the mean of its divisors is an integer number (4266108).

Almost surely, 2^78057914 is an apocalyptic number.

78057914 is a deficient number, since it is larger than the sum of its proper divisors (58457542).

78057914 is a wasteful number, since it uses less digits than its factorization.

78057914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 78057914 is about 8835.0389925569. The cubic root of 78057914 is about 427.3715884852.

The spelling of 78057914 in words is "seventy-eight million, fifty-seven thousand, nine hundred fourteen".