71798612 has 12 divisors (see below), whose sum is σ = 126448980. Its totient is φ = 35670336.

The previous prime is 71798593. The next prime is 71798651. The reversal of 71798612 is 21689717.

It can be written as a sum of positive squares in 2 ways, for example, as 34880836 + 36917776 = 5906^2 + 6076^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71798612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56537 + ... + 57792.

It is an arithmetic number, because the mean of its divisors is an integer number (10537415).

Almost surely, 2^71798612 is an apocalyptic number.

It is an amenable number.

71798612 is a deficient number, since it is larger than the sum of its proper divisors (54650368).

71798612 is a wasteful number, since it uses less digits than its factorization.

71798612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114490 (or 114488 counting only the distinct ones).

The product of its digits is 42336, while the sum is 41.

The square root of 71798612 is about 8473.4061628132. The cubic root of 71798612 is about 415.6285284115.

The spelling of 71798612 in words is "seventy-one million, seven hundred ninety-eight thousand, six hundred twelve".