79878803 has 8 divisors (see below), whose sum is σ = 81948672. Its totient is φ = 77824456.

The previous prime is 79878781. The next prime is 79878811. The reversal of 79878803 is 30887897.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79878803 is a prime.

It is a super-3 number, since 3×79878803³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79872803) 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, 6926 + ... + 14412.

It is an arithmetic number, because the mean of its divisors is an integer number (10243584).

Almost surely, 2^79878803 is an apocalyptic number.

79878803 is a deficient number, since it is larger than the sum of its proper divisors (2069869).

79878803 is a wasteful number, since it uses less digits than its factorization.

79878803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7761.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 79878803 is about 8937.4942237744. The cubic root of 79878803 is about 430.6692355147.

The spelling of 79878803 in words is "seventy-nine million, eight hundred seventy-eight thousand, eight hundred three".