82273973 has 2 divisors, whose sum is σ = 82273974. Its totient is φ = 82273972.

The previous prime is 82273951. The next prime is 82273979. The reversal of 82273973 is 37937228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72301009 + 9972964 = 8503^2 + 3158^2 .

It is a cyclic number.

It is not a de Polignac number, because 82273973 - 2⁶ = 82273909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82273973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82273979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41136986 + 41136987.

It is an arithmetic number, because the mean of its divisors is an integer number (41136987).

Almost surely, 2^82273973 is an apocalyptic number.

It is an amenable number.

82273973 is a deficient number, since it is larger than the sum of its proper divisors (1).

82273973 is an equidigital number, since it uses as much as digits as its factorization.

82273973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 41.

The square root of 82273973 is about 9070.5001515903. The cubic root of 82273973 is about 434.9314605538.

The spelling of 82273973 in words is "eighty-two million, two hundred seventy-three thousand, nine hundred seventy-three".