71048864 has 12 divisors (see below), whose sum is σ = 139877514. Its totient is φ = 35524416.

The previous prime is 71048849. The next prime is 71048867. The reversal of 71048864 is 46884017.

It can be written as a sum of positive squares in only one way, i.e., 70224400 + 824464 = 8380^2 + 908^2 .

It is not an unprimeable number, because it can be changed into a prime (71048867) by changing a digit.

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, 1110107 + ... + 1110170.

Almost surely, 2^71048864 is an apocalyptic number.

It is an amenable number.

71048864 is a deficient number, since it is larger than the sum of its proper divisors (68828650).

71048864 is a wasteful number, since it uses less digits than its factorization.

71048864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220287 (or 2220279 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 71048864 is about 8429.0488194102. The cubic root of 71048864 is about 414.1767470167.

The spelling of 71048864 in words is "seventy-one million, forty-eight thousand, eight hundred sixty-four".