83470081 has 2 divisors, whose sum is σ = 83470082. Its totient is φ = 83470080.

The previous prime is 83470069. The next prime is 83470099. The reversal of 83470081 is 18007438.

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., 43020481 + 40449600 = 6559^2 + 6360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83470081 is a prime.

It is a super-2 number, since 2×83470081² = 13934508844293122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83470031) 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, 41735040 + 41735041.

It is an arithmetic number, because the mean of its divisors is an integer number (41735041).

Almost surely, 2^83470081 is an apocalyptic number.

It is an amenable number.

83470081 is a deficient number, since it is larger than the sum of its proper divisors (1).

83470081 is an equidigital number, since it uses as much as digits as its factorization.

83470081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 83470081 is about 9136.1961997321. The cubic root of 83470081 is about 437.0290219804.

The spelling of 83470081 in words is "eighty-three million, four hundred seventy thousand, eighty-one".