87284894 has 4 divisors (see below), whose sum is σ = 130927344. Its totient is φ = 43642446.

The previous prime is 87284893. The next prime is 87284909. The reversal of 87284894 is 49848278.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87284891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21821222 + ... + 21821225.

It is an arithmetic number, because the mean of its divisors is an integer number (32731836).

Almost surely, 2^87284894 is an apocalyptic number.

87284894 is a deficient number, since it is larger than the sum of its proper divisors (43642450).

87284894 is a wasteful number, since it uses less digits than its factorization.

87284894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43642449.

The product of its digits is 1032192, while the sum is 50.

The square root of 87284894 is about 9342.6384924174. The cubic root of 87284894 is about 443.5879052481.

The spelling of 87284894 in words is "eighty-seven million, two hundred eighty-four thousand, eight hundred ninety-four".