3406870421 has 2 divisors, whose sum is σ = 3406870422. Its totient is φ = 3406870420.

The previous prime is 3406870417. The next prime is 3406870447. The reversal of 3406870421 is 1240786043.

3406870421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3320640625 + 86229796 = 57625^2 + 9286^2 .

It is a cyclic number.

It is not a de Polignac number, because 3406870421 - 2² = 3406870417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3406870021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1703435210 + 1703435211.

It is an arithmetic number, because the mean of its divisors is an integer number (1703435211).

Almost surely, 2^3406870421 is an apocalyptic number.

It is an amenable number.

3406870421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3406870421 is an equidigital number, since it uses as much as digits as its factorization.

3406870421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 3406870421 is about 58368.4025907854. The cubic root of 3406870421 is about 1504.7067593485.

The spelling of 3406870421 in words is "three billion, four hundred six million, eight hundred seventy thousand, four hundred twenty-one".