3480856421 has 16 divisors (see below), whose sum is σ = 4108984320. Its totient is φ = 2885563440.

The previous prime is 3480856397. The next prime is 3480856429. The reversal of 3480856421 is 1246580843.

It is a cyclic number.

It is not a de Polignac number, because 3480856421 - 2³⁰ = 2407114597 is a prime.

It is a super-2 number, since 2×3480856421² = 24232722847233858482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3480856429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438530 + ... + 446396.

It is an arithmetic number, because the mean of its divisors is an integer number (256811520).

Almost surely, 2^3480856421 is an apocalyptic number.

3480856421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3480856421 is a deficient number, since it is larger than the sum of its proper divisors (628127899).

3480856421 is a wasteful number, since it uses less digits than its factorization.

3480856421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9944.

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 3480856421 is about 58998.7832162664. The cubic root of 3480856421 is about 1515.5212721875.

The spelling of 3480856421 in words is "three billion, four hundred eighty million, eight hundred fifty-six thousand, four hundred twenty-one".