87284642 has 8 divisors (see below), whose sum is σ = 130971600. Its totient is φ = 43627444.

The previous prime is 87284641. The next prime is 87284663. The reversal of 87284642 is 24648278.

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 87284642.

It is not an unprimeable number, because it can be changed into a prime (87284641) 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, 2609 + ... + 13467.

It is an arithmetic number, because the mean of its divisors is an integer number (16371450).

Almost surely, 2^87284642 is an apocalyptic number.

87284642 is a deficient number, since it is larger than the sum of its proper divisors (43686958).

87284642 is a wasteful number, since it uses less digits than its factorization.

87284642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14880.

The product of its digits is 172032, while the sum is 41.

The square root of 87284642 is about 9342.6250058535. The cubic root of 87284642 is about 443.5874783538.

The spelling of 87284642 in words is "eighty-seven million, two hundred eighty-four thousand, six hundred forty-two".