84231620 has 24 divisors (see below), whose sum is σ = 192967488. Its totient is φ = 30629600.

The previous prime is 84231611. The next prime is 84231643. The reversal of 84231620 is 2613248.

It is a self number, because there is not a number n which added to its sum of digits gives 84231620.

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, 191216 + ... + 191655.

It is an arithmetic number, because the mean of its divisors is an integer number (8040312).

Almost surely, 2^84231620 is an apocalyptic number.

It is an amenable number.

84231620 is an abundant number, since it is smaller than the sum of its proper divisors (108735868).

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

84231620 is a wasteful number, since it uses less digits than its factorization.

84231620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382891 (or 382889 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 84231620 is about 9177.7785983320. The cubic root of 84231620 is about 438.3540779971.

Adding to 84231620 its reverse (2613248), we get a palindrome (86844868).

The spelling of 84231620 in words is "eighty-four million, two hundred thirty-one thousand, six hundred twenty".