82987894 has 8 divisors (see below), whose sum is σ = 135798408. Its totient is φ = 37721760.

The previous prime is 82987871. The next prime is 82987903. The reversal of 82987894 is 49878928.

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

It is a congruent number.

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, 1886067 + ... + 1886110.

It is an arithmetic number, because the mean of its divisors is an integer number (16974801).

Almost surely, 2^82987894 is an apocalyptic number.

82987894 is a deficient number, since it is larger than the sum of its proper divisors (52810514).

82987894 is a wasteful number, since it uses less digits than its factorization.

82987894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3772190.

The product of its digits is 2322432, while the sum is 55.

The square root of 82987894 is about 9109.7691518501. The cubic root of 82987894 is about 436.1858583924.

The spelling of 82987894 in words is "eighty-two million, nine hundred eighty-seven thousand, eight hundred ninety-four".