82190711 has 2 divisors, whose sum is σ = 82190712. Its totient is φ = 82190710.

The previous prime is 82190701. The next prime is 82190737. The reversal of 82190711 is 11709128.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82190711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82190701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41095355 + 41095356.

It is an arithmetic number, because the mean of its divisors is an integer number (41095356).

Almost surely, 2^82190711 is an apocalyptic number.

82190711 is a deficient number, since it is larger than the sum of its proper divisors (1).

82190711 is an equidigital number, since it uses as much as digits as its factorization.

82190711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 82190711 is about 9065.9092759634. The cubic root of 82190711 is about 434.7846928504.

Adding to 82190711 its reverse (11709128), we get a palindrome (93899839).

The spelling of 82190711 in words is "eighty-two million, one hundred ninety thousand, seven hundred eleven".