87178349 has 8 divisors (see below), whose sum is σ = 91065600. Its totient is φ = 83299216.

The previous prime is 87178339. The next prime is 87178367. The reversal of 87178349 is 94387178.

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

It is a cyclic number.

It is not a de Polignac number, because 87178349 - 2⁸ = 87178093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87178319) 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, 32927 + ... + 35475.

It is an arithmetic number, because the mean of its divisors is an integer number (11383200).

Almost surely, 2^87178349 is an apocalyptic number.

It is an amenable number.

87178349 is a deficient number, since it is larger than the sum of its proper divisors (3887251).

87178349 is a wasteful number, since it uses less digits than its factorization.

87178349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059.

The product of its digits is 338688, while the sum is 47.

The square root of 87178349 is about 9336.9346682945. The cubic root of 87178349 is about 443.4073420581.

The spelling of 87178349 in words is "eighty-seven million, one hundred seventy-eight thousand, three hundred forty-nine".