83764819 has 2 divisors, whose sum is σ = 83764820. Its totient is φ = 83764818.

The previous prime is 83764801. The next prime is 83764823. The reversal of 83764819 is 91846738.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83764819 - 2⁷ = 83764691 is a prime.

It is a super-2 number, since 2×83764819² = 14033089804205522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83764019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41882409 + 41882410.

It is an arithmetic number, because the mean of its divisors is an integer number (41882410).

Almost surely, 2^83764819 is an apocalyptic number.

83764819 is a deficient number, since it is larger than the sum of its proper divisors (1).

83764819 is an equidigital number, since it uses as much as digits as its factorization.

83764819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The square root of 83764819 is about 9152.3122215099. The cubic root of 83764819 is about 437.5428098517.

It can be divided in two parts, 837 and 64819, that added together give a palindrome (65656).

The spelling of 83764819 in words is "eighty-three million, seven hundred sixty-four thousand, eight hundred nineteen".