36821794 has 4 divisors (see below), whose sum is σ = 55232694. Its totient is φ = 18410896.

The previous prime is 36821789. The next prime is 36821797. The reversal of 36821794 is 49712863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49712863 = 1289 ⋅38567.

It can be written as a sum of positive squares in only one way, i.e., 19474569 + 17347225 = 4413^2 + 4165^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (36821797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9205447 + ... + 9205450.

Almost surely, 2^36821794 is an apocalyptic number.

36821794 is a deficient number, since it is larger than the sum of its proper divisors (18410900).

36821794 is a wasteful number, since it uses less digits than its factorization.

36821794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18410899.

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

The square root of 36821794 is about 6068.0964066172. The cubic root of 36821794 is about 332.6863492695.

It can be divided in two parts, 3682 and 1794, that added together give a square (5476 = 74²).

The spelling of 36821794 in words is "thirty-six million, eight hundred twenty-one thousand, seven hundred ninety-four".