82029805 has 32 divisors (see below), whose sum is σ = 118153728. Its totient is φ = 53875200.

The previous prime is 82029769. The next prime is 82029823. The reversal of 82029805 is 50892028.

It is not a de Polignac number, because 82029805 - 2⁷ = 82029677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32385 + ... + 34825.

It is an arithmetic number, because the mean of its divisors is an integer number (3692304).

Almost surely, 2^82029805 is an apocalyptic number.

It is an amenable number.

82029805 is a deficient number, since it is larger than the sum of its proper divisors (36123923).

82029805 is a wasteful number, since it uses less digits than its factorization.

82029805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2517.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 82029805 is about 9057.0306944384. The cubic root of 82029805 is about 434.5007793026.

It can be divided in two parts, 820 and 29805, that added together give a square (30625 = 175²).

The spelling of 82029805 in words is "eighty-two million, twenty-nine thousand, eight hundred five".