82687874 has 8 divisors (see below), whose sum is σ = 128308860. Its totient is φ = 39918256.

The previous prime is 82687861. The next prime is 82687889. The reversal of 82687874 is 47878628.

It can be written as a sum of positive squares in 2 ways, for example, as 81775849 + 912025 = 9043^2 + 955^2 .

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

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, 712769 + ... + 712884.

Almost surely, 2^82687874 is an apocalyptic number.

82687874 is a deficient number, since it is larger than the sum of its proper divisors (45620986).

82687874 is a wasteful number, since it uses less digits than its factorization.

82687874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425684.

The product of its digits is 1204224, while the sum is 50.

The square root of 82687874 is about 9093.2873043801. The cubic root of 82687874 is about 435.6595868525.

The spelling of 82687874 in words is "eighty-two million, six hundred eighty-seven thousand, eight hundred seventy-four".