82873745 has 4 divisors (see below), whose sum is σ = 99448500. Its totient is φ = 66298992.

The previous prime is 82873733. The next prime is 82873753. The reversal of 82873745 is 54737828.

It is a happy number.

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 26863489 + 56010256 = 5183^2 + 7484^2 .

It is a cyclic number.

It is not a de Polignac number, because 82873745 - 2¹⁰ = 82872721 is a prime.

It is a super-2 number, since 2×82873745² = 13736115220650050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82873696 and 82873705.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8287370 + ... + 8287379.

It is an arithmetic number, because the mean of its divisors is an integer number (24862125).

Almost surely, 2^82873745 is an apocalyptic number.

It is an amenable number.

82873745 is a deficient number, since it is larger than the sum of its proper divisors (16574755).

82873745 is a wasteful number, since it uses less digits than its factorization.

82873745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16574754.

The product of its digits is 376320, while the sum is 44.

The square root of 82873745 is about 9103.5017987585. The cubic root of 82873745 is about 435.9857768976.

The spelling of 82873745 in words is "eighty-two million, eight hundred seventy-three thousand, seven hundred forty-five".