71822196 has 18 divisors (see below), whose sum is σ = 181550642. Its totient is φ = 23940720.

The previous prime is 71822159. The next prime is 71822197. The reversal of 71822196 is 69122817.

It can be written as a sum of positive squares in only one way, i.e., 71166096 + 656100 = 8436^2 + 810^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1995061 = 71822196 / (7 + 1 + 8 + 2 + 2 + 1 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 71822196.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71822197) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 997495 + ... + 997566.

Almost surely, 2^71822196 is an apocalyptic number.

It is an amenable number.

71822196 is an abundant number, since it is smaller than the sum of its proper divisors (109728446).

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

71822196 is a wasteful number, since it uses less digits than its factorization.

71822196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995071 (or 1995066 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 71822196 is about 8474.7976967005. The cubic root of 71822196 is about 415.6740311952.

The spelling of 71822196 in words is "seventy-one million, eight hundred twenty-two thousand, one hundred ninety-six".