87684353 has 4 divisors (see below), whose sum is σ = 89723568. Its totient is φ = 85645140.

The previous prime is 87684347. The next prime is 87684379. The reversal of 87684353 is 35348678.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87684353 is a prime.

It is a super-2 number, since 2×87684353² = 15377091522057218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87684053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019543 + ... + 1019628.

It is an arithmetic number, because the mean of its divisors is an integer number (22430892).

Almost surely, 2^87684353 is an apocalyptic number.

It is an amenable number.

87684353 is a deficient number, since it is larger than the sum of its proper divisors (2039215).

87684353 is a wasteful number, since it uses less digits than its factorization.

87684353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039214.

The product of its digits is 483840, while the sum is 44.

The square root of 87684353 is about 9363.9923643711. The cubic root of 87684353 is about 444.2635683824.

The spelling of 87684353 in words is "eighty-seven million, six hundred eighty-four thousand, three hundred fifty-three".