83764081 has 2 divisors, whose sum is σ = 83764082. Its totient is φ = 83764080.

The previous prime is 83764073. The next prime is 83764099. The reversal of 83764081 is 18046738.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57138481 + 26625600 = 7559^2 + 5160^2 .

It is a cyclic number.

It is not a de Polignac number, because 83764081 - 2³ = 83764073 is a prime.

It is a super-2 number, since 2×83764081² = 14032842531549122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83764081.

It is not a weakly prime, because it can be changed into another prime (83764001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41882040 + 41882041.

It is an arithmetic number, because the mean of its divisors is an integer number (41882041).

Almost surely, 2^83764081 is an apocalyptic number.

It is an amenable number.

83764081 is a deficient number, since it is larger than the sum of its proper divisors (1).

83764081 is an equidigital number, since it uses as much as digits as its factorization.

83764081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 83764081 is about 9152.2719037406. The cubic root of 83764081 is about 437.5415248749.

The spelling of 83764081 in words is "eighty-three million, seven hundred sixty-four thousand, eighty-one".