3407943921 has 8 divisors (see below), whose sum is σ = 4548109824. Its totient is φ = 2269870320.

The previous prime is 3407943871. The next prime is 3407943983. The reversal of 3407943921 is 1293497043.

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

It is not a de Polignac number, because 3407943921 - 2⁶ = 3407943857 is a prime.

It is a super-2 number, since 2×3407943921² = 23228163537361708482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3407943991) 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, 519270 + ... + 525791.

It is an arithmetic number, because the mean of its divisors is an integer number (568513728).

Almost surely, 2^3407943921 is an apocalyptic number.

It is an amenable number.

3407943921 is a deficient number, since it is larger than the sum of its proper divisors (1140165903).

3407943921 is a wasteful number, since it uses less digits than its factorization.

3407943921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046151.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 3407943921 is about 58377.5977666091. The cubic root of 3407943921 is about 1504.8647864013.

The spelling of 3407943921 in words is "three billion, four hundred seven million, nine hundred forty-three thousand, nine hundred twenty-one".