84321007 has 4 divisors (see below), whose sum is σ = 84413680. Its totient is φ = 84228336.

The previous prime is 84321001. The next prime is 84321011. The reversal of 84321007 is 70012348.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84321007 - 2¹¹ = 84318959 is a prime.

It is a super-2 number, since 2×84321007² = 14220064442988098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84321001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44958 + ... + 46795.

It is an arithmetic number, because the mean of its divisors is an integer number (21103420).

Almost surely, 2^84321007 is an apocalyptic number.

84321007 is a deficient number, since it is larger than the sum of its proper divisors (92673).

84321007 is an equidigital number, since it uses as much as digits as its factorization.

84321007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92672.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 84321007 is about 9182.6470584467. The cubic root of 84321007 is about 438.5090843303.

The spelling of 84321007 in words is "eighty-four million, three hundred twenty-one thousand, seven".