71470456 has 32 divisors (see below), whose sum is σ = 137998080. Its totient is φ = 34684000.

The previous prime is 71470439. The next prime is 71470459. The reversal of 71470456 is 65407417.

71470456 = 2106² + 2107² + ... + 2121².

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71470459) 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 in 7 ways as a sum of consecutive naturals, for example, 48531 + ... + 49981.

It is an arithmetic number, because the mean of its divisors is an integer number (4312440).

Almost surely, 2^71470456 is an apocalyptic number.

It is an amenable number.

71470456 is a deficient number, since it is larger than the sum of its proper divisors (66527624).

71470456 is a wasteful number, since it uses less digits than its factorization.

71470456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635 (or 1631 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 71470456 is about 8454.0201088003. The cubic root of 71470456 is about 414.9943503368.

The spelling of 71470456 in words is "seventy-one million, four hundred seventy thousand, four hundred fifty-six".