84430830 has 32 divisors (see below), whose sum is σ = 221056128. Its totient is φ = 20468000.

The previous prime is 84430807. The next prime is 84430831. The reversal of 84430830 is 3803448.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84430831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127596 + ... + 128255.

It is an arithmetic number, because the mean of its divisors is an integer number (6908004).

Almost surely, 2^84430830 is an apocalyptic number.

84430830 is an abundant number, since it is smaller than the sum of its proper divisors (136625298).

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

84430830 is a wasteful number, since it uses less digits than its factorization.

84430830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255872.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 84430830 is about 9188.6250331592. The cubic root of 84430830 is about 438.6993789050.

The spelling of 84430830 in words is "eighty-four million, four hundred thirty thousand, eight hundred thirty".