82446681 has 16 divisors (see below), whose sum is σ = 119707200. Its totient is φ = 50275008.

The previous prime is 82446677. The next prime is 82446703. The reversal of 82446681 is 18664428.

It is not a de Polignac number, because 82446681 - 2² = 82446677 is a prime.

It is a super-2 number, since 2×82446681² = 13594910415831522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82446671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23286 + ... + 26591.

It is an arithmetic number, because the mean of its divisors is an integer number (7481700).

Almost surely, 2^82446681 is an apocalyptic number.

It is an amenable number.

82446681 is a deficient number, since it is larger than the sum of its proper divisors (37260519).

82446681 is a wasteful number, since it uses less digits than its factorization.

82446681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49928.

The product of its digits is 73728, while the sum is 39.

The square root of 82446681 is about 9080.0154735551. The cubic root of 82446681 is about 435.2355812065.

The spelling of 82446681 in words is "eighty-two million, four hundred forty-six thousand, six hundred eighty-one".