87682319 has 4 divisors (see below), whose sum is σ = 89168520. Its totient is φ = 86196120.

The previous prime is 87682303. The next prime is 87682333. The reversal of 87682319 is 91328678.

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

It is a cyclic number.

It is not a de Polignac number, because 87682319 - 2⁴ = 87682303 is a prime.

It is a super-2 number, since 2×87682319² = 15376378130435522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87682319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87682339) 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, 743012 + ... + 743129.

It is an arithmetic number, because the mean of its divisors is an integer number (22292130).

Almost surely, 2^87682319 is an apocalyptic number.

87682319 is a deficient number, since it is larger than the sum of its proper divisors (1486201).

87682319 is a wasteful number, since it uses less digits than its factorization.

87682319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486200.

The product of its digits is 145152, while the sum is 44.

The square root of 87682319 is about 9363.8837562200. The cubic root of 87682319 is about 444.2601331854.

The spelling of 87682319 in words is "eighty-seven million, six hundred eighty-two thousand, three hundred nineteen".