3303421421 has 4 divisors (see below), whose sum is σ = 3304541532. Its totient is φ = 3302301312.

The previous prime is 3303421369. The next prime is 3303421439. The reversal of 3303421421 is 1241243033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1241243033 = 37 ⋅33547109.

It can be written as a sum of positive squares in 2 ways, for example, as 604618921 + 2698802500 = 24589^2 + 51950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3303421421 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 (3303421441) 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, 555620 + ... + 561533.

It is an arithmetic number, because the mean of its divisors is an integer number (826135383).

Almost surely, 2^3303421421 is an apocalyptic number.

It is an amenable number.

3303421421 is a deficient number, since it is larger than the sum of its proper divisors (1120111).

3303421421 is a wasteful number, since it uses less digits than its factorization.

3303421421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120110.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 3303421421 is about 57475.3983979233. The cubic root of 3303421421 is about 1489.3199035780.

Adding to 3303421421 its reverse (1241243033), we get a palindrome (4544664454).

The spelling of 3303421421 in words is "three billion, three hundred three million, four hundred twenty-one thousand, four hundred twenty-one".