86783651 has 2 divisors, whose sum is σ = 86783652. Its totient is φ = 86783650.

The previous prime is 86783639. The next prime is 86783707. The reversal of 86783651 is 15638768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86783651 - 2¹⁰ = 86782627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86783551) 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 as a sum of consecutive naturals, namely, 43391825 + 43391826.

It is an arithmetic number, because the mean of its divisors is an integer number (43391826).

Almost surely, 2^86783651 is an apocalyptic number.

86783651 is a deficient number, since it is larger than the sum of its proper divisors (1).

86783651 is an equidigital number, since it uses as much as digits as its factorization.

86783651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 86783651 is about 9315.7743102761. The cubic root of 86783651 is about 442.7371573911.

The spelling of 86783651 in words is "eighty-six million, seven hundred eighty-three thousand, six hundred fifty-one".