7021849 has 8 divisors (see below), whose sum is σ = 7439040. Its totient is φ = 6609456.

The previous prime is 7021843. The next prime is 7021853. The reversal of 7021849 is 9481207.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7021849 - 2¹¹ = 7019801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7021849.

It is not an unprimeable number, because it can be changed into a prime (7021843) 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 7 ways as a sum of consecutive naturals, for example, 2067 + ... + 4279.

It is an arithmetic number, because the mean of its divisors is an integer number (929880).

Almost surely, 2^7021849 is an apocalyptic number.

It is an amenable number.

7021849 is a deficient number, since it is larger than the sum of its proper divisors (417191).

7021849 is a wasteful number, since it uses less digits than its factorization.

7021849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 7021849 is about 2649.8771669645. The cubic root of 7021849 is about 191.4919383881.

The spelling of 7021849 in words is "seven million, twenty-one thousand, eight hundred forty-nine".