3049085821 has 8 divisors (see below), whose sum is σ = 3081719520. Its totient is φ = 3016625808.

The previous prime is 3049085807. The next prime is 3049085843. The reversal of 3049085821 is 1285809403.

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 3049085821 - 2¹⁵ = 3049053053 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 (3049085891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7971 + ... + 78496.

It is an arithmetic number, because the mean of its divisors is an integer number (385214940).

Almost surely, 2^3049085821 is an apocalyptic number.

It is an amenable number.

3049085821 is a deficient number, since it is larger than the sum of its proper divisors (32633699).

3049085821 is a wasteful number, since it uses less digits than its factorization.

3049085821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86843.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 3049085821 is about 55218.5278778781. The cubic root of 3049085821 is about 1450.0730555344.

The spelling of 3049085821 in words is "three billion, forty-nine million, eighty-five thousand, eight hundred twenty-one".