71485964 has 12 divisors (see below), whose sum is σ = 136473288. Its totient is φ = 32493600.

The previous prime is 71485963. The next prime is 71485979. The reversal of 71485964 is 46958417.

It is a super-2 number, since 2×71485964² = 10220486098018592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 1624681 = 71485964 / (7 + 1 + 4 + 8 + 5 + 9 + 6 + 4).

It is not an unprimeable number, because it can be changed into a prime (71485963) 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, 812297 + ... + 812384.

It is an arithmetic number, because the mean of its divisors is an integer number (11372774).

Almost surely, 2^71485964 is an apocalyptic number.

It is an amenable number.

71485964 is a deficient number, since it is larger than the sum of its proper divisors (64987324).

71485964 is a wasteful number, since it uses less digits than its factorization.

71485964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624696 (or 1624694 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 71485964 is about 8454.9372558287. The cubic root of 71485964 is about 415.0243639831.

The spelling of 71485964 in words is "seventy-one million, four hundred eighty-five thousand, nine hundred sixty-four".