83560819 has 2 divisors, whose sum is σ = 83560820. Its totient is φ = 83560818.

The previous prime is 83560787. The next prime is 83560843. The reversal of 83560819 is 91806538.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83560819 - 2⁵ = 83560787 is a prime.

It is a super-2 number, since 2×83560819² = 13964820943901522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83560849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41780409 + 41780410.

It is an arithmetic number, because the mean of its divisors is an integer number (41780410).

Almost surely, 2^83560819 is an apocalyptic number.

83560819 is a deficient number, since it is larger than the sum of its proper divisors (1).

83560819 is an equidigital number, since it uses as much as digits as its factorization.

83560819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 83560819 is about 9141.1607031055. The cubic root of 83560819 is about 437.1873253240.

The spelling of 83560819 in words is "eighty-three million, five hundred sixty thousand, eight hundred nineteen".