87864442 has 8 divisors (see below), whose sum is σ = 132834816. Its totient is φ = 43586172.

The previous prime is 87864383. The next prime is 87864473. The reversal of 87864442 is 24446878.

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

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, 172708 + ... + 173215.

It is an arithmetic number, because the mean of its divisors is an integer number (16604352).

Almost surely, 2^87864442 is an apocalyptic number.

87864442 is a deficient number, since it is larger than the sum of its proper divisors (44970374).

87864442 is a wasteful number, since it uses less digits than its factorization.

87864442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346052.

The product of its digits is 344064, while the sum is 43.

The square root of 87864442 is about 9373.6034693174. The cubic root of 87864442 is about 444.5675080927.

The spelling of 87864442 in words is "eighty-seven million, eight hundred sixty-four thousand, four hundred forty-two".