87491246 has 8 divisors (see below), whose sum is σ = 131903640. Its totient is φ = 43523368.

The previous prime is 87491177. The next prime is 87491249. The reversal of 87491246 is 64219478.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87491249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110636 + ... + 111423.

It is an arithmetic number, because the mean of its divisors is an integer number (16487955).

Almost surely, 2^87491246 is an apocalyptic number.

87491246 is a deficient number, since it is larger than the sum of its proper divisors (44412394).

87491246 is a wasteful number, since it uses less digits than its factorization.

87491246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222258.

The product of its digits is 96768, while the sum is 41.

The square root of 87491246 is about 9353.6755342486. The cubic root of 87491246 is about 443.9371952125.

The spelling of 87491246 in words is "eighty-seven million, four hundred ninety-one thousand, two hundred forty-six".