84450387 has 8 divisors (see below), whose sum is σ = 128686336. Its totient is φ = 48257352.

The previous prime is 84450371. The next prime is 84450389. The reversal of 84450387 is 78305448.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84450387 - 2⁴ = 84450371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84450389) by changing a digit.

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, 2010703 + ... + 2010744.

It is an arithmetic number, because the mean of its divisors is an integer number (16085792).

Almost surely, 2^84450387 is an apocalyptic number.

84450387 is a deficient number, since it is larger than the sum of its proper divisors (44235949).

84450387 is a wasteful number, since it uses less digits than its factorization.

84450387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021457.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 84450387 is about 9189.6891677575. The cubic root of 84450387 is about 438.7332487659.

The spelling of 84450387 in words is "eighty-four million, four hundred fifty thousand, three hundred eighty-seven".