71244373 has 4 divisors (see below), whose sum is σ = 71360460. Its totient is φ = 71128288.

The previous prime is 71244307. The next prime is 71244377. The reversal of 71244373 is 37344217.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34363044 + 36881329 = 5862^2 + 6073^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71244373 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 (71244377) 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, 57118 + ... + 58351.

It is an arithmetic number, because the mean of its divisors is an integer number (17840115).

Almost surely, 2^71244373 is an apocalyptic number.

It is an amenable number.

71244373 is a deficient number, since it is larger than the sum of its proper divisors (116087).

71244373 is a wasteful number, since it uses less digits than its factorization.

71244373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116086.

The product of its digits is 14112, while the sum is 31.

The square root of 71244373 is about 8440.6381867724. The cubic root of 71244373 is about 414.5563032626.

It can be divided in two parts, 71244 and 373, that added together give a palindrome (71617).

The spelling of 71244373 in words is "seventy-one million, two hundred forty-four thousand, three hundred seventy-three".