71354399 has 4 divisors (see below), whose sum is σ = 71867880. Its totient is φ = 70840920.

The previous prime is 71354357. The next prime is 71354401. The reversal of 71354399 is 99345317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99345317 = 101 ⋅983617.

It is a cyclic number.

It is not a de Polignac number, because 71354399 - 2¹² = 71350303 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 (71354099) 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, 256532 + ... + 256809.

It is an arithmetic number, because the mean of its divisors is an integer number (17966970).

Almost surely, 2^71354399 is an apocalyptic number.

71354399 is a deficient number, since it is larger than the sum of its proper divisors (513481).

71354399 is a wasteful number, since it uses less digits than its factorization.

71354399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513480.

The product of its digits is 102060, while the sum is 41.

The square root of 71354399 is about 8447.1533074758. The cubic root of 71354399 is about 414.7695996947.

The spelling of 71354399 in words is "seventy-one million, three hundred fifty-four thousand, three hundred ninety-nine".