84138410 has 8 divisors (see below), whose sum is σ = 151449156. Its totient is φ = 33655360.

The previous prime is 84138409. The next prime is 84138419. The reversal of 84138410 is 1483148.

It can be written as a sum of positive squares in 2 ways, for example, as 80478841 + 3659569 = 8971^2 + 1913^2 .

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

It is not an unprimeable number, because it can be changed into a prime (84138419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4206911 + ... + 4206930.

Almost surely, 2^84138410 is an apocalyptic number.

84138410 is a deficient number, since it is larger than the sum of its proper divisors (67310746).

84138410 is a wasteful number, since it uses less digits than its factorization.

84138410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8413848.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 84138410 is about 9172.6991665485. The cubic root of 84138410 is about 438.1923253430.

It can be divided in two parts, 84138 and 410, that added together give a palindrome (84548).

The spelling of 84138410 in words is "eighty-four million, one hundred thirty-eight thousand, four hundred ten".