71322349 has 4 divisors (see below), whose sum is σ = 81511264. Its totient is φ = 61133436.

The previous prime is 71322319. The next prime is 71322367. The reversal of 71322349 is 94322317.

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 not a de Polignac number, because 71322349 - 2⁷ = 71322221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71322349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71322319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5094447 + ... + 5094460.

It is an arithmetic number, because the mean of its divisors is an integer number (20377816).

Almost surely, 2^71322349 is an apocalyptic number.

It is an amenable number.

71322349 is a deficient number, since it is larger than the sum of its proper divisors (10188915).

71322349 is a wasteful number, since it uses less digits than its factorization.

71322349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10188914.

The product of its digits is 9072, while the sum is 31.

The square root of 71322349 is about 8445.2560055927. The cubic root of 71322349 is about 414.7074902025.

The spelling of 71322349 in words is "seventy-one million, three hundred twenty-two thousand, three hundred forty-nine".