82305407 has 2 divisors, whose sum is σ = 82305408. Its totient is φ = 82305406.

The previous prime is 82305389. The next prime is 82305479. The reversal of 82305407 is 70450328.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82305407 - 2⁸ = 82305151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82305407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82305107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41152703 + 41152704.

It is an arithmetic number, because the mean of its divisors is an integer number (41152704).

Almost surely, 2^82305407 is an apocalyptic number.

82305407 is a deficient number, since it is larger than the sum of its proper divisors (1).

82305407 is an equidigital number, since it uses as much as digits as its factorization.

82305407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 82305407 is about 9072.2327461326. The cubic root of 82305407 is about 434.9868441875.

The spelling of 82305407 in words is "eighty-two million, three hundred five thousand, four hundred seven".