79318403 has 4 divisors (see below), whose sum is σ = 79347528. Its totient is φ = 79289280.

The previous prime is 79318399. The next prime is 79318409. The reversal of 79318403 is 30481397.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30481397 = 127 ⋅240011.

It is a cyclic number.

It is not a de Polignac number, because 79318403 - 2² = 79318399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79318409) 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 3 ways as a sum of consecutive naturals, for example, 10001 + ... + 16082.

It is an arithmetic number, because the mean of its divisors is an integer number (19836882).

Almost surely, 2^79318403 is an apocalyptic number.

79318403 is a deficient number, since it is larger than the sum of its proper divisors (29125).

79318403 is a wasteful number, since it uses less digits than its factorization.

79318403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29124.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 79318403 is about 8906.0879739648. The cubic root of 79318403 is about 429.6597326136.

The spelling of 79318403 in words is "seventy-nine million, three hundred eighteen thousand, four hundred three".