78375103 has 4 divisors (see below), whose sum is σ = 78428088. Its totient is φ = 78322120.

The previous prime is 78375061. The next prime is 78375107. The reversal of 78375103 is 30157387.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78375103 - 2⁹ = 78374591 is a prime.

It is a super-2 number, since 2×78375103² = 12285313540521218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78375107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24208 + ... + 27253.

It is an arithmetic number, because the mean of its divisors is an integer number (19607022).

Almost surely, 2^78375103 is an apocalyptic number.

78375103 is a deficient number, since it is larger than the sum of its proper divisors (52985).

78375103 is a wasteful number, since it uses less digits than its factorization.

78375103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52984.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 78375103 is about 8852.9714220707. The cubic root of 78375103 is about 427.9496821942.

The spelling of 78375103 in words is "seventy-eight million, three hundred seventy-five thousand, one hundred three".