82426073 has 4 divisors (see below), whose sum is σ = 82610100. Its totient is φ = 82242048.

The previous prime is 82426063. The next prime is 82426079. The reversal of 82426073 is 37062428.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39037504 + 43388569 = 6248^2 + 6587^2 .

It is a cyclic number.

It is not a de Polignac number, because 82426073 - 2¹⁸ = 82163929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82426079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91340 + ... + 92237.

It is an arithmetic number, because the mean of its divisors is an integer number (20652525).

Almost surely, 2^82426073 is an apocalyptic number.

It is an amenable number.

82426073 is a deficient number, since it is larger than the sum of its proper divisors (184027).

82426073 is a wasteful number, since it uses less digits than its factorization.

82426073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184026.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 82426073 is about 9078.8806028056. The cubic root of 82426073 is about 435.1993150113.

The spelling of 82426073 in words is "eighty-two million, four hundred twenty-six thousand, seventy-three".