82621238 has 16 divisors (see below), whose sum is σ = 141999264. Its totient is φ = 35318400.

The previous prime is 82621229. The next prime is 82621243. The reversal of 82621238 is 83212628.

It is a super-3 number, since 3×82621238³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1745 + ... + 12972.

It is an arithmetic number, because the mean of its divisors is an integer number (8874954).

Almost surely, 2^82621238 is an apocalyptic number.

82621238 is a deficient number, since it is larger than the sum of its proper divisors (59378026).

82621238 is a wasteful number, since it uses less digits than its factorization.

82621238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15127.

The product of its digits is 9216, while the sum is 32.

The square root of 82621238 is about 9089.6225444184. The cubic root of 82621238 is about 435.5425265040.

The spelling of 82621238 in words is "eighty-two million, six hundred twenty-one thousand, two hundred thirty-eight".