71654036 has 6 divisors (see below), whose sum is σ = 125394570. Its totient is φ = 35827016.

The previous prime is 71654017. The next prime is 71654047. The reversal of 71654036 is 63045617.

It can be written as a sum of positive squares in only one way, i.e., 55413136 + 16240900 = 7444^2 + 4030^2 .

It is a junction number, because it is equal to n+sod(n) for n = 71653993 and 71654011.

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 as a sum of consecutive naturals, namely, 8956751 + ... + 8956758.

It is an arithmetic number, because the mean of its divisors is an integer number (20899095).

Almost surely, 2^71654036 is an apocalyptic number.

It is an amenable number.

71654036 is a deficient number, since it is larger than the sum of its proper divisors (53740534).

71654036 is a wasteful number, since it uses less digits than its factorization.

71654036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17913513 (or 17913511 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 71654036 is about 8464.8707019068. The cubic root of 71654036 is about 415.3493666161.

The spelling of 71654036 in words is "seventy-one million, six hundred fifty-four thousand, thirty-six".