82457707 has 2 divisors, whose sum is σ = 82457708. Its totient is φ = 82457706.

The previous prime is 82457681. The next prime is 82457743. The reversal of 82457707 is 70775428.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82457707 - 2¹⁹ = 81933419 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82457707.

It is not a weakly prime, because it can be changed into another prime (82457407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41228853 + 41228854.

It is an arithmetic number, because the mean of its divisors is an integer number (41228854).

Almost surely, 2^82457707 is an apocalyptic number.

82457707 is a deficient number, since it is larger than the sum of its proper divisors (1).

82457707 is an equidigital number, since it uses as much as digits as its factorization.

82457707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 109760, while the sum is 40.

The square root of 82457707 is about 9080.6226108125. The cubic root of 82457707 is about 435.2549824063.

The spelling of 82457707 in words is "eighty-two million, four hundred fifty-seven thousand, seven hundred seven".