82620719 has 2 divisors, whose sum is σ = 82620720. Its totient is φ = 82620718.

The previous prime is 82620653. The next prime is 82620751. The reversal of 82620719 is 91702628.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82620719 - 2²⁰ = 81572143 is a prime.

It is a super-2 number, since 2×82620719² = 13652366416153922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82620919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41310359 + 41310360.

It is an arithmetic number, because the mean of its divisors is an integer number (41310360).

Almost surely, 2^82620719 is an apocalyptic number.

82620719 is a deficient number, since it is larger than the sum of its proper divisors (1).

82620719 is an equidigital number, since it uses as much as digits as its factorization.

82620719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 82620719 is about 9089.5939953333. The cubic root of 82620719 is about 435.5416145228.

The spelling of 82620719 in words is "eighty-two million, six hundred twenty thousand, seven hundred nineteen".