71358479 has 4 divisors (see below), whose sum is σ = 72363600. Its totient is φ = 70353360.

The previous prime is 71358431. The next prime is 71358487. The reversal of 71358479 is 97485317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97485317 = 1069 ⋅91193.

It is a cyclic number.

It is not a de Polignac number, because 71358479 - 2²⁰ = 70309903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71318479) 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, 502454 + ... + 502595.

It is an arithmetic number, because the mean of its divisors is an integer number (18090900).

Almost surely, 2^71358479 is an apocalyptic number.

71358479 is a deficient number, since it is larger than the sum of its proper divisors (1005121).

71358479 is a wasteful number, since it uses less digits than its factorization.

71358479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005120.

The product of its digits is 211680, while the sum is 44.

The square root of 71358479 is about 8447.3948055007. The cubic root of 71358479 is about 414.7775049663. Note that the first 3 decimals are identical.

The spelling of 71358479 in words is "seventy-one million, three hundred fifty-eight thousand, four hundred seventy-nine".