87682840 has 32 divisors (see below), whose sum is σ = 225470880. Its totient is φ = 30062592.

The previous prime is 87682823. The next prime is 87682841. The reversal of 87682840 is 4828678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87682841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156297 + ... + 156856.

It is an arithmetic number, because the mean of its divisors is an integer number (7045965).

Almost surely, 2^87682840 is an apocalyptic number.

It is an amenable number.

87682840 is an abundant number, since it is smaller than the sum of its proper divisors (137788040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87682840 is a wasteful number, since it uses less digits than its factorization.

87682840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313171 (or 313167 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 87682840 is about 9363.9115758320. The cubic root of 87682840 is about 444.2610131008.

The spelling of 87682840 in words is "eighty-seven million, six hundred eighty-two thousand, eight hundred forty".