86783923 has 2 divisors, whose sum is σ = 86783924. Its totient is φ = 86783922.

The previous prime is 86783891. The next prime is 86783941. The reversal of 86783923 is 32938768.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86783923 - 2⁵ = 86783891 is a prime.

It is not a weakly prime, because it can be changed into another prime (86783993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43391961 + 43391962.

It is an arithmetic number, because the mean of its divisors is an integer number (43391962).

Almost surely, 2^86783923 is an apocalyptic number.

86783923 is a deficient number, since it is larger than the sum of its proper divisors (1).

86783923 is an equidigital number, since it uses as much as digits as its factorization.

86783923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 46.

The square root of 86783923 is about 9315.7889091585. The cubic root of 86783923 is about 442.7376199375.

The spelling of 86783923 in words is "eighty-six million, seven hundred eighty-three thousand, nine hundred twenty-three".