87858158 has 4 divisors (see below), whose sum is σ = 131787240. Its totient is φ = 43929078.

The previous prime is 87858157. The next prime is 87858167. The reversal of 87858158 is 85185878.

It is a happy number.

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 (87858151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21964538 + ... + 21964541.

It is an arithmetic number, because the mean of its divisors is an integer number (32946810).

Almost surely, 2^87858158 is an apocalyptic number.

87858158 is a deficient number, since it is larger than the sum of its proper divisors (43929082).

87858158 is a wasteful number, since it uses less digits than its factorization.

87858158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43929081.

The product of its digits is 716800, while the sum is 50.

The square root of 87858158 is about 9373.2682667253. The cubic root of 87858158 is about 444.5569094600.

The spelling of 87858158 in words is "eighty-seven million, eight hundred fifty-eight thousand, one hundred fifty-eight".