64113421 has 4 divisors (see below), whose sum is σ = 64169344. Its totient is φ = 64057500.

The previous prime is 64113419. The next prime is 64113457. The reversal of 64113421 is 12431146.

64113421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64113421 - 2¹ = 64113419 is a prime.

It is a super-2 number, since 2×64113421² = 8221061504646482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64113392 and 64113401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64113481) 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 3 ways as a sum of consecutive naturals, for example, 26205 + ... + 28546.

It is an arithmetic number, because the mean of its divisors is an integer number (16042336).

Almost surely, 2^64113421 is an apocalyptic number.

It is an amenable number.

64113421 is a deficient number, since it is larger than the sum of its proper divisors (55923).

64113421 is a wasteful number, since it uses less digits than its factorization.

64113421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55922.

The product of its digits is 576, while the sum is 22.

The square root of 64113421 is about 8007.0856745760. The cubic root of 64113421 is about 400.2361543004.

Adding to 64113421 its reverse (12431146), we get a palindrome (76544567).

The spelling of 64113421 in words is "sixty-four million, one hundred thirteen thousand, four hundred twenty-one".