83020706497 has 2 divisors, whose sum is σ = 83020706498. Its totient is φ = 83020706496.

The previous prime is 83020706479. The next prime is 83020706539. The reversal of 83020706497 is 79460702038.

Together with previous prime (83020706479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75717978561 + 7302727936 = 275169^2 + 85456^2 .

It is a cyclic number.

It is not a de Polignac number, because 83020706497 - 2⁷ = 83020706369 is a prime.

It is a super-2 number, since 2×83020706497² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83020706467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41510353248 + 41510353249.

It is an arithmetic number, because the mean of its divisors is an integer number (41510353249).

Almost surely, 2^83020706497 is an apocalyptic number.

It is an amenable number.

83020706497 is a deficient number, since it is larger than the sum of its proper divisors (1).

83020706497 is an equidigital number, since it uses as much as digits as its factorization.

83020706497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 83020706497 in words is "eighty-three billion, twenty million, seven hundred six thousand, four hundred ninety-seven".