87878054 has 16 divisors (see below), whose sum is σ = 144199440. Its totient is φ = 39833760.

The previous prime is 87878053. The next prime is 87878069. The reversal of 87878054 is 45087878.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87878051) 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, 2852 + ... + 13560.

It is an arithmetic number, because the mean of its divisors is an integer number (9012465).

Almost surely, 2^87878054 is an apocalyptic number.

87878054 is a deficient number, since it is larger than the sum of its proper divisors (56321386).

87878054 is a wasteful number, since it uses less digits than its factorization.

87878054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11095.

The product of its (nonzero) digits is 501760, while the sum is 47.

The square root of 87878054 is about 9374.3295226912. The cubic root of 87878054 is about 444.5904644419.

The spelling of 87878054 in words is "eighty-seven million, eight hundred seventy-eight thousand, fifty-four".