82994805 has 12 divisors (see below), whose sum is σ = 143857740. Its totient is φ = 44263872.

The previous prime is 82994803. The next prime is 82994819. The reversal of 82994805 is 50849928.

82994805 is a `hidden beast` number, since 82 + 99 + 480 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 57653649 + 25341156 = 7593^2 + 5034^2 .

It is not a de Polignac number, because 82994805 - 2¹ = 82994803 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1844329 = 82994805 / (8 + 2 + 9 + 9 + 4 + 8 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82994803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 922120 + ... + 922209.

It is an arithmetic number, because the mean of its divisors is an integer number (11988145).

Almost surely, 2^82994805 is an apocalyptic number.

It is an amenable number.

82994805 is a deficient number, since it is larger than the sum of its proper divisors (60862935).

82994805 is a wasteful number, since it uses less digits than its factorization.

82994805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844340 (or 1844337 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 82994805 is about 9110.1484620175. The cubic root of 82994805 is about 436.1979661696.

The spelling of 82994805 in words is "eighty-two million, nine hundred ninety-four thousand, eight hundred five".