86782641 has 8 divisors (see below), whose sum is σ = 126229344. Its totient is φ = 52595520.

The previous prime is 86782627. The next prime is 86782651. The reversal of 86782641 is 14628768.

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

It is not a de Polignac number, because 86782641 - 2¹¹ = 86780593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86782593 and 86782602.

It is not an unprimeable number, because it can be changed into a prime (86782651) 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, 1314856 + ... + 1314921.

It is an arithmetic number, because the mean of its divisors is an integer number (15778668).

Almost surely, 2^86782641 is an apocalyptic number.

It is an amenable number.

86782641 is a deficient number, since it is larger than the sum of its proper divisors (39446703).

86782641 is a wasteful number, since it uses less digits than its factorization.

86782641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629791.

The product of its digits is 129024, while the sum is 42.

The square root of 86782641 is about 9315.7201009906. The cubic root of 86782641 is about 442.7354398393.

The spelling of 86782641 in words is "eighty-six million, seven hundred eighty-two thousand, six hundred forty-one".