80836605 has 48 divisors (see below), whose sum is σ = 148127616. Its totient is φ = 40698240.

The previous prime is 80836597. The next prime is 80836669. The reversal of 80836605 is 50663808.

It is not a de Polignac number, because 80836605 - 2³ = 80836597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80836605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85435 + ... + 86375.

It is an arithmetic number, because the mean of its divisors is an integer number (3085992).

Almost surely, 2^80836605 is an apocalyptic number.

It is an amenable number.

80836605 is a deficient number, since it is larger than the sum of its proper divisors (67291011).

80836605 is a wasteful number, since it uses less digits than its factorization.

80836605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058 (or 1055 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 80836605 is about 8990.9179175432. The cubic root of 80836605 is about 432.3837414583.

The spelling of 80836605 in words is "eighty million, eight hundred thirty-six thousand, six hundred five".