79171403 has 4 divisors (see below), whose sum is σ = 79249968. Its totient is φ = 79092840.

The previous prime is 79171399. The next prime is 79171409. The reversal of 79171403 is 30417197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30417197 = 1699 ⋅17903.

It is a cyclic number.

It is not a de Polignac number, because 79171403 - 2² = 79171399 is a prime.

It is a super-2 number, since 2×79171403² = 12536222105976818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79171403.

It is not an unprimeable number, because it can be changed into a prime (79171409) 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, 37751 + ... + 39792.

It is an arithmetic number, because the mean of its divisors is an integer number (19812492).

Almost surely, 2^79171403 is an apocalyptic number.

79171403 is a deficient number, since it is larger than the sum of its proper divisors (78565).

79171403 is a wasteful number, since it uses less digits than its factorization.

79171403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78564.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 79171403 is about 8897.8313650012. The cubic root of 79171403 is about 429.3941404498.

The spelling of 79171403 in words is "seventy-nine million, one hundred seventy-one thousand, four hundred three".