3439824821 has 8 divisors (see below), whose sum is σ = 3673228800. Its totient is φ = 3214073520.

The previous prime is 3439824811. The next prime is 3439824841. The reversal of 3439824821 is 1284289343.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3439824821 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 (3439824811) 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, 1912241 + ... + 1914038.

It is an arithmetic number, because the mean of its divisors is an integer number (459153600).

Almost surely, 2^3439824821 is an apocalyptic number.

3439824821 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3439824821 is a deficient number, since it is larger than the sum of its proper divisors (233403979).

3439824821 is a wasteful number, since it uses less digits than its factorization.

3439824821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826339.

The product of its digits is 331776, while the sum is 44.

The square root of 3439824821 is about 58650.0197868679. The cubic root of 3439824821 is about 1509.5428379367.

The spelling of 3439824821 in words is "three billion, four hundred thirty-nine million, eight hundred twenty-four thousand, eight hundred twenty-one".