71614321 has 4 divisors (see below), whose sum is σ = 71636544. Its totient is φ = 71592100.

The previous prime is 71614313. The next prime is 71614337. The reversal of 71614321 is 12341617.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71614321 - 2³ = 71614313 is a prime.

It is a super-2 number, since 2×71614321² = 10257221944582082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71614381) 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, 5245 + ... + 13066.

It is an arithmetic number, because the mean of its divisors is an integer number (17909136).

Almost surely, 2^71614321 is an apocalyptic number.

It is an amenable number.

71614321 is a deficient number, since it is larger than the sum of its proper divisors (22223).

71614321 is a wasteful number, since it uses less digits than its factorization.

71614321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22222.

The product of its digits is 1008, while the sum is 25.

The square root of 71614321 is about 8462.5245051344. The cubic root of 71614321 is about 415.2726151885.

Adding to 71614321 its reverse (12341617), we get a palindrome (83955938).

The spelling of 71614321 in words is "seventy-one million, six hundred fourteen thousand, three hundred twenty-one".