82641472 has 28 divisors (see below), whose sum is σ = 164283136. Its totient is φ = 41247360.

The previous prime is 82641467. The next prime is 82641473. The reversal of 82641472 is 27414628.

It is a happy number.

It is a super-2 number, since 2×82641472² = 13659225788653568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82641473) 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, 62773 + ... + 64075.

Almost surely, 2^82641472 is an apocalyptic number.

It is an amenable number.

82641472 is a deficient number, since it is larger than the sum of its proper divisors (81641664).

82641472 is a wasteful number, since it uses less digits than its factorization.

82641472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306 (or 2296 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 82641472 is about 9090.7355037973. The cubic root of 82641472 is about 435.5780784935.

The spelling of 82641472 in words is "eighty-two million, six hundred forty-one thousand, four hundred seventy-two".