36494821 has 4 divisors (see below), whose sum is σ = 39812544. Its totient is φ = 33177100.

The previous prime is 36494779. The next prime is 36494827. The reversal of 36494821 is 12849463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12849463 = 11 ⋅1168133.

It is not a de Polignac number, because 36494821 - 2⁹ = 36494309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36494827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1658845 + ... + 1658866.

It is an arithmetic number, because the mean of its divisors is an integer number (9953136).

Almost surely, 2^36494821 is an apocalyptic number.

It is an amenable number.

36494821 is a deficient number, since it is larger than the sum of its proper divisors (3317723).

36494821 is a wasteful number, since it uses less digits than its factorization.

36494821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317722.

The product of its digits is 41472, while the sum is 37.

The square root of 36494821 is about 6041.0943545023. The cubic root of 36494821 is about 331.6986820718.

The spelling of 36494821 in words is "thirty-six million, four hundred ninety-four thousand, eight hundred twenty-one".