79870403 has 4 divisors (see below), whose sum is σ = 84568680. Its totient is φ = 75172128.

The previous prime is 79870387. The next prime is 79870409. The reversal of 79870403 is 30407897.

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 79870403 - 2⁴ = 79870387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79870409) 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, 2349113 + ... + 2349146.

It is an arithmetic number, because the mean of its divisors is an integer number (21142170).

Almost surely, 2^79870403 is an apocalyptic number.

79870403 is a deficient number, since it is larger than the sum of its proper divisors (4698277).

79870403 is a wasteful number, since it uses less digits than its factorization.

79870403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4698276.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 79870403 is about 8937.0242810457. The cubic root of 79870403 is about 430.6541386919.

The spelling of 79870403 in words is "seventy-nine million, eight hundred seventy thousand, four hundred three".