82273669 has 2 divisors, whose sum is σ = 82273670. Its totient is φ = 82273668.

The previous prime is 82273661. The next prime is 82273673. The reversal of 82273669 is 96637228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73788100 + 8485569 = 8590^2 + 2913^2 .

It is a cyclic number.

It is not a de Polignac number, because 82273669 - 2³ = 82273661 is a prime.

It is a super-2 number, since 2×82273669² = 13537913221443122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82273661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41136834 + 41136835.

It is an arithmetic number, because the mean of its divisors is an integer number (41136835).

Almost surely, 2^82273669 is an apocalyptic number.

It is an amenable number.

82273669 is a deficient number, since it is larger than the sum of its proper divisors (1).

82273669 is an equidigital number, since it uses as much as digits as its factorization.

82273669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The square root of 82273669 is about 9070.4833939543. The cubic root of 82273669 is about 434.9309248667.

The spelling of 82273669 in words is "eighty-two million, two hundred seventy-three thousand, six hundred sixty-nine".