71256764 has 12 divisors (see below), whose sum is σ = 131262600. Its totient is φ = 33753168.

The previous prime is 71256761. The next prime is 71256769. The reversal of 71256764 is 46765217.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71256761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468719 + ... + 468870.

It is an arithmetic number, because the mean of its divisors is an integer number (10938550).

Almost surely, 2^71256764 is an apocalyptic number.

It is an amenable number.

71256764 is a deficient number, since it is larger than the sum of its proper divisors (60005836).

71256764 is a wasteful number, since it uses less digits than its factorization.

71256764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937612 (or 937610 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 71256764 is about 8441.3721633393. The cubic root of 71256764 is about 414.5803354266.

The spelling of 71256764 in words is "seventy-one million, two hundred fifty-six thousand, seven hundred sixty-four".