71749346 has 8 divisors (see below), whose sum is σ = 107880924. Its totient is φ = 35789040.

The previous prime is 71749343. The next prime is 71749357. The reversal of 71749346 is 64394717.

It can be written as a sum of positive squares in 2 ways, for example, as 61795321 + 9954025 = 7861^2 + 3155^2 .

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

It is not an unprimeable number, because it can be changed into a prime (71749343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41765 + ... + 43448.

Almost surely, 2^71749346 is an apocalyptic number.

71749346 is a deficient number, since it is larger than the sum of its proper divisors (36131578).

71749346 is a wasteful number, since it uses less digits than its factorization.

71749346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85636.

The product of its digits is 127008, while the sum is 41.

The square root of 71749346 is about 8470.4985685614. The cubic root of 71749346 is about 415.5334428208.

The spelling of 71749346 in words is "seventy-one million, seven hundred forty-nine thousand, three hundred forty-six".