82447361 has 4 divisors (see below), whose sum is σ = 82473300. Its totient is φ = 82421424.

The previous prime is 82447357. The next prime is 82447369. The reversal of 82447361 is 16374428.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22090000 + 60357361 = 4700^2 + 7769^2 .

It is a cyclic number.

It is not a de Polignac number, because 82447361 - 2² = 82447357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82447369) 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, 7406 + ... + 14823.

It is an arithmetic number, because the mean of its divisors is an integer number (20618325).

Almost surely, 2^82447361 is an apocalyptic number.

It is an amenable number.

82447361 is a deficient number, since it is larger than the sum of its proper divisors (25939).

82447361 is a wasteful number, since it uses less digits than its factorization.

82447361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25938.

The product of its digits is 32256, while the sum is 35.

The square root of 82447361 is about 9080.0529183480. The cubic root of 82447361 is about 435.2367777753.

The spelling of 82447361 in words is "eighty-two million, four hundred forty-seven thousand, three hundred sixty-one".