79870003 has 2 divisors, whose sum is σ = 79870004. Its totient is φ = 79870002.

The previous prime is 79870001. The next prime is 79870019. The reversal of 79870003 is 30007897.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79870003 - 2¹ = 79870001 is a prime.

It is a super-3 number, since 3×79870003³ (a number of 25 digits) contains 333 as substring.

Together with 79870001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (79870001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39935001 + 39935002.

It is an arithmetic number, because the mean of its divisors is an integer number (39935002).

Almost surely, 2^79870003 is an apocalyptic number.

79870003 is a deficient number, since it is larger than the sum of its proper divisors (1).

79870003 is an equidigital number, since it uses as much as digits as its factorization.

79870003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 79870003 is about 8937.0019022041. The cubic root of 79870003 is about 430.6534197692.

Subtracting from 79870003 its sum of digits (34), we obtain a square (79869969 = 8937²).

The spelling of 79870003 in words is "seventy-nine million, eight hundred seventy thousand, three".