82420700 has 36 divisors (see below), whose sum is σ = 181134240. Its totient is φ = 32547840.

The previous prime is 82420693. The next prime is 82420739. The reversal of 82420700 is 702428.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2684 + ... + 13116.

Almost surely, 2^82420700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82420700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90567120).

82420700 is an abundant number, since it is smaller than the sum of its proper divisors (98713540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82420700 is a wasteful number, since it uses less digits than its factorization.

82420700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10526 (or 10519 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 82420700 is about 9078.5846914593. The cubic root of 82420700 is about 435.1898585507.

The spelling of 82420700 in words is "eighty-two million, four hundred twenty thousand, seven hundred".