84138088 has 8 divisors (see below), whose sum is σ = 157758930. Its totient is φ = 42069040.

The previous prime is 84138079. The next prime is 84138097. The reversal of 84138088 is 88083148.

It is an interprime number because it is at equal distance from previous prime (84138079) and next prime (84138097).

It can be written as a sum of positive squares in only one way, i.e., 78464164 + 5673924 = 8858^2 + 2382^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 84138088.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5258623 + ... + 5258638.

Almost surely, 2^84138088 is an apocalyptic number.

It is an amenable number.

84138088 is a deficient number, since it is larger than the sum of its proper divisors (73620842).

84138088 is a wasteful number, since it uses less digits than its factorization.

84138088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10517267 (or 10517263 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 84138088 is about 9172.6816144462. The cubic root of 84138088 is about 438.1917663509.

The spelling of 84138088 in words is "eighty-four million, one hundred thirty-eight thousand, eighty-eight".