84621030 has 64 divisors (see below), whose sum is σ = 222360768. Its totient is φ = 20482560.

The previous prime is 84621023. The next prime is 84621059. The reversal of 84621030 is 3012648.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22012 + ... + 25568.

It is an arithmetic number, because the mean of its divisors is an integer number (3474387).

Almost surely, 2^84621030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84621030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111180384).

84621030 is an abundant number, since it is smaller than the sum of its proper divisors (137739738).

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

84621030 is a wasteful number, since it uses less digits than its factorization.

84621030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 84621030 is about 9198.9689639655. The cubic root of 84621030 is about 439.0285558330.

Adding to 84621030 its reverse (3012648), we get a palindrome (87633678).

The spelling of 84621030 in words is "eighty-four million, six hundred twenty-one thousand, thirty".