84608878 has 4 divisors (see below), whose sum is σ = 126913320. Its totient is φ = 42304438.

The previous prime is 84608851. The next prime is 84608879. The reversal of 84608878 is 87880648.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84608879) 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 as a sum of consecutive naturals, namely, 21152218 + ... + 21152221.

It is an arithmetic number, because the mean of its divisors is an integer number (31728330).

Almost surely, 2^84608878 is an apocalyptic number.

84608878 is a deficient number, since it is larger than the sum of its proper divisors (42304442).

84608878 is a wasteful number, since it uses less digits than its factorization.

84608878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42304441.

The product of its (nonzero) digits is 688128, while the sum is 49.

The square root of 84608878 is about 9198.3084314454. The cubic root of 84608878 is about 439.0075392669.

The spelling of 84608878 in words is "eighty-four million, six hundred eight thousand, eight hundred seventy-eight".