78057326 has 8 divisors (see below), whose sum is σ = 117126000. Its totient is φ = 39015328.

The previous prime is 78057323. The next prime is 78057347. The reversal of 78057326 is 62375087.

It is a happy number.

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

It is a super-2 number, since 2×78057326² = 12185892284540552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78057326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78057323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4175 + ... + 13173.

It is an arithmetic number, because the mean of its divisors is an integer number (14640750).

Almost surely, 2^78057326 is an apocalyptic number.

78057326 is a deficient number, since it is larger than the sum of its proper divisors (39068674).

78057326 is a wasteful number, since it uses less digits than its factorization.

78057326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13338.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 78057326 is about 8835.0057159008. The cubic root of 78057326 is about 427.3705153712.

The spelling of 78057326 in words is "seventy-eight million, fifty-seven thousand, three hundred twenty-six".