71267408 has 10 divisors (see below), whose sum is σ = 138080634. Its totient is φ = 35633696.

The previous prime is 71267407. The next prime is 71267429. The reversal of 71267408 is 80476217.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 60031504 + 11235904 = 7748^2 + 3352^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71267407) 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 as a sum of consecutive naturals, namely, 2227091 + ... + 2227122.

Almost surely, 2^71267408 is an apocalyptic number.

It is an amenable number.

71267408 is a deficient number, since it is larger than the sum of its proper divisors (66813226).

71267408 is a wasteful number, since it uses less digits than its factorization.

71267408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4454221 (or 4454215 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 71267408 is about 8442.0026060171. The cubic root of 71267408 is about 414.6009770852.

The spelling of 71267408 in words is "seventy-one million, two hundred sixty-seven thousand, four hundred eight".