71444365 has 4 divisors (see below), whose sum is σ = 85733244. Its totient is φ = 57155488.

The previous prime is 71444341. The next prime is 71444381. The reversal of 71444365 is 56344417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56344417 = 5309 ⋅10613.

It can be written as a sum of positive squares in 2 ways, for example, as 27008809 + 44435556 = 5197^2 + 6666^2 .

It is a cyclic number.

It is not a de Polignac number, because 71444365 - 2⁵ = 71444333 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 71444365.

It is a congruent number.

It is an unprimeable number.

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, 7144432 + ... + 7144441.

It is an arithmetic number, because the mean of its divisors is an integer number (21433311).

Almost surely, 2^71444365 is an apocalyptic number.

It is an amenable number.

71444365 is a deficient number, since it is larger than the sum of its proper divisors (14288879).

71444365 is a wasteful number, since it uses less digits than its factorization.

71444365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14288878.

The product of its digits is 40320, while the sum is 34.

The square root of 71444365 is about 8452.4768559281. The cubic root of 71444365 is about 414.9438449203.

The spelling of 71444365 in words is "seventy-one million, four hundred forty-four thousand, three hundred sixty-five".