71736049 has 16 divisors (see below), whose sum is σ = 91267200. Its totient is φ = 55895280.

The previous prime is 71736037. The next prime is 71736097. The reversal of 71736049 is 94063717.

It is not a de Polignac number, because 71736049 - 2⁵ = 71736017 is a prime.

It is a super-2 number, since 2×71736049² = 10292121452260802, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71735999 and 71736017.

It is not an unprimeable number, because it can be changed into a prime (71736349) 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 15 ways as a sum of consecutive naturals, for example, 5734 + ... + 13279.

It is an arithmetic number, because the mean of its divisors is an integer number (5704200).

Almost surely, 2^71736049 is an apocalyptic number.

It is an amenable number.

71736049 is a deficient number, since it is larger than the sum of its proper divisors (19531151).

71736049 is a wasteful number, since it uses less digits than its factorization.

71736049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19045 (or 19031 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 71736049 is about 8469.7136315226. The cubic root of 71736049 is about 415.5077715552.

It can be divided in two parts, 717360 and 49, that added together give a square (717409 = 847²).

The spelling of 71736049 in words is "seventy-one million, seven hundred thirty-six thousand, forty-nine".