87834386 has 8 divisors (see below), whose sum is σ = 132074940. Its totient is φ = 43809408.

The previous prime is 87834379. The next prime is 87834389. The reversal of 87834386 is 68343878.

It can be written as a sum of positive squares in 2 ways, for example, as 68641225 + 19193161 = 8285^2 + 4381^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 87834386.

It is not an unprimeable number, because it can be changed into a prime (87834389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52871 + ... + 54506.

Almost surely, 2^87834386 is an apocalyptic number.

87834386 is a deficient number, since it is larger than the sum of its proper divisors (44240554).

87834386 is a wasteful number, since it uses less digits than its factorization.

87834386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107788.

The product of its digits is 774144, while the sum is 47.

The square root of 87834386 is about 9372.0001067008. Note that the first 3 decimals coincide. The cubic root of 87834386 is about 444.5168108876.

The spelling of 87834386 in words is "eighty-seven million, eight hundred thirty-four thousand, three hundred eighty-six".