71314421 has 8 divisors (see below), whose sum is σ = 75677760. Its totient is φ = 67056352.

The previous prime is 71314417. The next prime is 71314423. The reversal of 71314421 is 12441317.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71314421 - 2² = 71314417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71314423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24920 + ... + 27633.

It is an arithmetic number, because the mean of its divisors is an integer number (9459720).

Almost surely, 2^71314421 is an apocalyptic number.

It is an amenable number.

71314421 is a deficient number, since it is larger than the sum of its proper divisors (4363339).

71314421 is a wasteful number, since it uses less digits than its factorization.

71314421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52635.

The product of its digits is 672, while the sum is 23.

The square root of 71314421 is about 8444.7866166055. The cubic root of 71314421 is about 414.6921237110.

Adding to 71314421 its reverse (12441317), we get a palindrome (83755738).

The spelling of 71314421 in words is "seventy-one million, three hundred fourteen thousand, four hundred twenty-one".