71104823 has 4 divisors (see below), whose sum is σ = 71135328. Its totient is φ = 71074320.

The previous prime is 71104777. The next prime is 71104837. The reversal of 71104823 is 32840117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32840117 = 67 ⋅490151.

It is a cyclic number.

It is not a de Polignac number, because 71104823 - 2⁸ = 71104567 is a prime.

It is a super-2 number, since 2×71104823² = 10111791707722658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71104792 and 71104801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71104883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11438 + ... + 16523.

It is an arithmetic number, because the mean of its divisors is an integer number (17783832).

Almost surely, 2^71104823 is an apocalyptic number.

71104823 is a deficient number, since it is larger than the sum of its proper divisors (30505).

71104823 is a wasteful number, since it uses less digits than its factorization.

71104823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30504.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 71104823 is about 8432.3675797489. The cubic root of 71104823 is about 414.2854554610.

The spelling of 71104823 in words is "seventy-one million, one hundred four thousand, eight hundred twenty-three".