87389142 has 8 divisors (see below), whose sum is σ = 174778296. Its totient is φ = 29129712.

The previous prime is 87389111. The next prime is 87389171. The reversal of 87389142 is 24198378.

It is a sphenic number, since it is the product of 3 distinct primes.

87389142 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 87389094 and 87389103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7282423 + ... + 7282434.

It is an arithmetic number, because the mean of its divisors is an integer number (21847287).

Almost surely, 2^87389142 is an apocalyptic number.

87389142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87389142 is a wasteful number, since it uses less digits than its factorization.

87389142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14564862.

The product of its digits is 96768, while the sum is 42.

The square root of 87389142 is about 9348.2159795332. The cubic root of 87389142 is about 443.7644335185.

The spelling of 87389142 in words is "eighty-seven million, three hundred eighty-nine thousand, one hundred forty-two".