421535413 has 8 divisors (see below), whose sum is σ = 466230968. Its totient is φ = 378592704.

The previous prime is 421535371. The next prime is 421535419. The reversal of 421535413 is 314535124.

It can be written as a sum of positive squares in 4 ways, for example, as 79174404 + 342361009 = 8898^2 + 18503^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 421535413 - 2⁹ = 421534901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421535419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437706 + ... + 438667.

It is an arithmetic number, because the mean of its divisors is an integer number (58278871).

Almost surely, 2^421535413 is an apocalyptic number.

It is an amenable number.

421535413 is a deficient number, since it is larger than the sum of its proper divisors (44695555).

421535413 is a wasteful number, since it uses less digits than its factorization.

421535413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876423.

The product of its digits is 7200, while the sum is 28.

The square root of 421535413 is about 20531.3275995489. The cubic root of 421535413 is about 749.7987092401.

The spelling of 421535413 in words is "four hundred twenty-one million, five hundred thirty-five thousand, four hundred thirteen".