84638830 has 16 divisors (see below), whose sum is σ = 152614224. Its totient is φ = 33796800.

The previous prime is 84638803. The next prime is 84638831. The reversal of 84638830 is 3883648.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84638831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1032 + ... + 13051.

It is an arithmetic number, because the mean of its divisors is an integer number (9538389).

Almost surely, 2^84638830 is an apocalyptic number.

84638830 is a deficient number, since it is larger than the sum of its proper divisors (67975394).

84638830 is a wasteful number, since it uses less digits than its factorization.

84638830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14691.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 84638830 is about 9199.9364128237. The cubic root of 84638830 is about 439.0593368355.

The spelling of 84638830 in words is "eighty-four million, six hundred thirty-eight thousand, eight hundred thirty".