421064613 has 12 divisors (see below), whose sum is σ = 612288300. Its totient is φ = 278824896.

The previous prime is 421064597. The next prime is 421064621. The reversal of 421064613 is 316460124.

421064613 is a `hidden beast` number, since 4 + 2 + 1 + 0 + 646 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 195524289 + 225540324 = 13983^2 + 15018^2 .

It is not a de Polignac number, because 421064613 - 2⁴ = 421064597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421064513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155656 + ... + 158337.

It is an arithmetic number, because the mean of its divisors is an integer number (51024025).

Almost surely, 2^421064613 is an apocalyptic number.

It is an amenable number.

421064613 is a deficient number, since it is larger than the sum of its proper divisors (191223687).

421064613 is a wasteful number, since it uses less digits than its factorization.

421064613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314148 (or 314145 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 421064613 is about 20519.8589907436. The cubic root of 421064613 is about 749.5194628445.

The spelling of 421064613 in words is "four hundred twenty-one million, sixty-four thousand, six hundred thirteen".