84621682 has 16 divisors (see below), whose sum is σ = 134573400. Its totient is φ = 39770368.

The previous prime is 84621653. The next prime is 84621689. The reversal of 84621682 is 28612648.

It can be written as a sum of positive squares in 4 ways, for example, as 84621601 + 81 = 9199^2 + 9^2 .

It is not an unprimeable number, because it can be changed into a prime (84621689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42444 + ... + 44392.

Almost surely, 2^84621682 is an apocalyptic number.

84621682 is a deficient number, since it is larger than the sum of its proper divisors (49951718).

84621682 is a wasteful number, since it uses less digits than its factorization.

84621682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245.

The product of its digits is 36864, while the sum is 37.

The square root of 84621682 is about 9199.0044026514. The cubic root of 84621682 is about 439.0296833930.

The spelling of 84621682 in words is "eighty-four million, six hundred twenty-one thousand, six hundred eighty-two".