84328907 has 4 divisors (see below), whose sum is σ = 90815760. Its totient is φ = 77842056.

The previous prime is 84328873. The next prime is 84328927. The reversal of 84328907 is 70982348.

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 84328907 - 2¹⁶ = 84263371 is a prime.

It is a super-2 number, since 2×84328907² = 14222729111629298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84328927) 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, 3243407 + ... + 3243432.

It is an arithmetic number, because the mean of its divisors is an integer number (22703940).

Almost surely, 2^84328907 is an apocalyptic number.

84328907 is a deficient number, since it is larger than the sum of its proper divisors (6486853).

84328907 is a wasteful number, since it uses less digits than its factorization.

84328907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6486852.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 84328907 is about 9183.0772075596. The cubic root of 84328907 is about 438.5227784805.

The spelling of 84328907 in words is "eighty-four million, three hundred twenty-eight thousand, nine hundred seven".