3378996421 has 4 divisors (see below), whose sum is σ = 3390003232. Its totient is φ = 3367989612.

The previous prime is 3378996367. The next prime is 3378996433. The reversal of 3378996421 is 1246998733.

3378996421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1246998733 = 587 ⋅2124359.

It is a cyclic number.

It is not a de Polignac number, because 3378996421 - 2⁷ = 3378996293 is a prime.

It is a super-2 number, since 2×3378996421² = 22835233626261618482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3378196421) 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, 5502945 + ... + 5503558.

It is an arithmetic number, because the mean of its divisors is an integer number (847500808).

Almost surely, 2^3378996421 is an apocalyptic number.

It is an amenable number.

3378996421 is a deficient number, since it is larger than the sum of its proper divisors (11006811).

3378996421 is a wasteful number, since it uses less digits than its factorization.

3378996421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11006810.

The product of its digits is 1959552, while the sum is 52.

The square root of 3378996421 is about 58129.1357324363. The cubic root of 3378996421 is about 1500.5918288321.

The spelling of 3378996421 in words is "three billion, three hundred seventy-eight million, nine hundred ninety-six thousand, four hundred twenty-one".