82603805 has 8 divisors (see below), whose sum is σ = 99173592. Its totient is φ = 66050368.

The previous prime is 82603789. The next prime is 82603813. The reversal of 82603805 is 50830628.

It can be written as a sum of positive squares in 4 ways, for example, as 46158436 + 36445369 = 6794^2 + 6037^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82603805 - 2⁴ = 82603789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16139 + ... + 20631.

It is an arithmetic number, because the mean of its divisors is an integer number (12396699).

Almost surely, 2^82603805 is an apocalyptic number.

It is an amenable number.

82603805 is a deficient number, since it is larger than the sum of its proper divisors (16569787).

82603805 is a wasteful number, since it uses less digits than its factorization.

82603805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8175.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 82603805 is about 9088.6635431179. The cubic root of 82603805 is about 435.5118913342.

The spelling of 82603805 in words is "eighty-two million, six hundred three thousand, eight hundred five".