64060421 has 4 divisors (see below), whose sum is σ = 64092000. Its totient is φ = 64028844.

The previous prime is 64060417. The next prime is 64060427. The reversal of 64060421 is 12406046.

It is a happy number.

64060421 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, and also an emirpimes, since its reverse is a distinct semiprime: 12406046 = 2 ⋅6203023.

It is a cyclic number.

It is not a de Polignac number, because 64060421 - 2² = 64060417 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 (64060427) 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, 12521 + ... + 16878.

It is an arithmetic number, because the mean of its divisors is an integer number (16023000).

Almost surely, 2^64060421 is an apocalyptic number.

It is an amenable number.

64060421 is a deficient number, since it is larger than the sum of its proper divisors (31579).

64060421 is a wasteful number, since it uses less digits than its factorization.

64060421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31578.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 64060421 is about 8003.7754216370. The cubic root of 64060421 is about 400.1258374915.

Adding to 64060421 its reverse (12406046), we get a palindrome (76466467).

The spelling of 64060421 in words is "sixty-four million, sixty thousand, four hundred twenty-one".