71650612 has 48 divisors (see below), whose sum is σ = 144353664. Its totient is φ = 30800000.

The previous prime is 71650567. The next prime is 71650633. The reversal of 71650612 is 21605617.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 101862 + ... + 102562.

It is an arithmetic number, because the mean of its divisors is an integer number (3007368).

Almost surely, 2^71650612 is an apocalyptic number.

It is an amenable number.

71650612 is an abundant number, since it is smaller than the sum of its proper divisors (72703052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71650612 is a wasteful number, since it uses less digits than its factorization.

71650612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 71650612 is about 8464.6684518651. The cubic root of 71650612 is about 415.3427506645.

The spelling of 71650612 in words is "seventy-one million, six hundred fifty thousand, six hundred twelve".