84623280 has 160 divisors (see below), whose sum is σ = 317551104. Its totient is φ = 18198528.

The previous prime is 84623261. The next prime is 84623293. The reversal of 84623280 is 8232648.

It is a super-2 number, since 2×84623280² = 14322199035916800, which contains 22 as substring.

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, 27079 + ... + 30041.

Almost surely, 2^84623280 is an apocalyptic number.

84623280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84623280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158775552).

84623280 is an abundant number, since it is smaller than the sum of its proper divisors (232927824).

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

84623280 is a wasteful number, since it uses less digits than its factorization.

84623280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003 (or 2997 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 84623280 is about 9199.0912594669. The cubic root of 84623280 is about 439.0324469283.

The spelling of 84623280 in words is "eighty-four million, six hundred twenty-three thousand, two hundred eighty".