82081907 has 2 divisors, whose sum is σ = 82081908. Its totient is φ = 82081906.

The previous prime is 82081897. The next prime is 82081913. The reversal of 82081907 is 70918028.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82081907 - 2⁴ = 82081891 is a prime.

It is not a weakly prime, because it can be changed into another prime (82081927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41040953 + 41040954.

It is an arithmetic number, because the mean of its divisors is an integer number (41040954).

Almost surely, 2^82081907 is an apocalyptic number.

82081907 is a deficient number, since it is larger than the sum of its proper divisors (1).

82081907 is an equidigital number, since it uses as much as digits as its factorization.

82081907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 82081907 is about 9059.9065668471. The cubic root of 82081907 is about 434.5927522479.

The spelling of 82081907 in words is "eighty-two million, eighty-one thousand, nine hundred seven".