81794362 has 16 divisors (see below), whose sum is σ = 132654312. Its totient is φ = 37601280.

The previous prime is 81794359. The next prime is 81794381. The reversal of 81794362 is 26349718.

It can be written as a sum of positive squares in 4 ways, for example, as 70241161 + 11553201 = 8381^2 + 3399^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562 + ... + 12802.

Almost surely, 2^81794362 is an apocalyptic number.

81794362 is a deficient number, since it is larger than the sum of its proper divisors (50859950).

81794362 is a wasteful number, since it uses less digits than its factorization.

81794362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12513.

The product of its digits is 72576, while the sum is 40.

The square root of 81794362 is about 9044.0235514952. The cubic root of 81794362 is about 434.0846777090.

The spelling of 81794362 in words is "eighty-one million, seven hundred ninety-four thousand, three hundred sixty-two".