78056297 has 8 divisors (see below), whose sum is σ = 85486752. Its totient is φ = 70681600.

The previous prime is 78056287. The next prime is 78056311. The reversal of 78056297 is 79265087.

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

It is not a de Polignac number, because 78056297 - 2⁴ = 78056281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78056207) 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, 10979 + ... + 16632.

It is an arithmetic number, because the mean of its divisors is an integer number (10685844).

Almost surely, 2^78056297 is an apocalyptic number.

It is an amenable number.

78056297 is a deficient number, since it is larger than the sum of its proper divisors (7430455).

78056297 is a wasteful number, since it uses less digits than its factorization.

78056297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27879.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 78056297 is about 8834.9474814511. The cubic root of 78056297 is about 427.3686374087.

The spelling of 78056297 in words is "seventy-eight million, fifty-six thousand, two hundred ninety-seven".