78748193 has 4 divisors (see below), whose sum is σ = 78792240. Its totient is φ = 78704148.

The previous prime is 78748181. The next prime is 78748207. The reversal of 78748193 is 39184787.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78748193 - 2⁴ = 78748177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78748393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19223 + ... + 22956.

It is an arithmetic number, because the mean of its divisors is an integer number (19698060).

Almost surely, 2^78748193 is an apocalyptic number.

It is an amenable number.

78748193 is a deficient number, since it is larger than the sum of its proper divisors (44047).

78748193 is a wasteful number, since it uses less digits than its factorization.

78748193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44046.

The product of its digits is 338688, while the sum is 47.

The square root of 78748193 is about 8874.0178611495. The cubic root of 78748193 is about 428.6276656308.

The spelling of 78748193 in words is "seventy-eight million, seven hundred forty-eight thousand, one hundred ninety-three".