8920049 has 4 divisors (see below), whose sum is σ = 9127536. Its totient is φ = 8712564.

The previous prime is 8920039. The next prime is 8920057. The reversal of 8920049 is 9400298.

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.

It is a cyclic number.

It is not a de Polignac number, because 8920049 - 2¹² = 8915953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8919997 and 8920024.

It is not an unprimeable number, because it can be changed into a prime (8920039) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 103679 + ... + 103764.

It is an arithmetic number, because the mean of its divisors is an integer number (2281884).

Almost surely, 2^8920049 is an apocalyptic number.

It is an amenable number.

8920049 is a deficient number, since it is larger than the sum of its proper divisors (207487).

8920049 is a wasteful number, since it uses less digits than its factorization.

8920049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207486.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 8920049 is about 2986.6451078091. The cubic root of 8920049 is about 207.3906057137.

Subtracting 8920049 from its reverse (9400298), we obtain a square (480249 = 693²).

The spelling of 8920049 in words is "eight million, nine hundred twenty thousand, forty-nine".