84453860 has 24 divisors (see below), whose sum is σ = 186688320. Its totient is φ = 32003424.

The previous prime is 84453833. The next prime is 84453881. The reversal of 84453860 is 6835448.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110744 + ... + 111503.

It is an arithmetic number, because the mean of its divisors is an integer number (7778680).

Almost surely, 2^84453860 is an apocalyptic number.

It is an amenable number.

84453860 is an abundant number, since it is smaller than the sum of its proper divisors (102234460).

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

84453860 is a wasteful number, since it uses less digits than its factorization.

84453860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222275 (or 222273 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 84453860 is about 9189.8781275923. The cubic root of 84453860 is about 438.7392629467.

The spelling of 84453860 in words is "eighty-four million, four hundred fifty-three thousand, eight hundred sixty".