84463138 has 16 divisors (see below), whose sum is σ = 132423480. Its totient is φ = 40352256.

The previous prime is 84463133. The next prime is 84463139. The reversal of 84463138 is 83136448.

It can be written as a sum of positive squares in 4 ways, for example, as 77739489 + 6723649 = 8817^2 + 2593^2 .

It is a junction number, because it is equal to n+sod(n) for n = 84463097 and 84463106.

It is not an unprimeable number, because it can be changed into a prime (84463133) 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, 1881 + ... + 13132.

Almost surely, 2^84463138 is an apocalyptic number.

84463138 is a deficient number, since it is larger than the sum of its proper divisors (47960342).

84463138 is a wasteful number, since it uses less digits than its factorization.

84463138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15141.

The product of its digits is 55296, while the sum is 37.

The square root of 84463138 is about 9190.3829082362. The cubic root of 84463138 is about 438.7553288152.

The spelling of 84463138 in words is "eighty-four million, four hundred sixty-three thousand, one hundred thirty-eight".