46664421 has 4 divisors (see below), whose sum is σ = 62219232. Its totient is φ = 31109612.

The previous prime is 46664413. The next prime is 46664477. The reversal of 46664421 is 12446664.

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 46664421 - 2³ = 46664413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46664411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7777401 + ... + 7777406.

It is an arithmetic number, because the mean of its divisors is an integer number (15554808).

Almost surely, 2^46664421 is an apocalyptic number.

It is an amenable number.

46664421 is a deficient number, since it is larger than the sum of its proper divisors (15554811).

46664421 is a wasteful number, since it uses less digits than its factorization.

46664421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15554810.

The product of its digits is 27648, while the sum is 33.

The square root of 46664421 is about 6831.1361426925. The cubic root of 46664421 is about 360.0216576477.

The spelling of 46664421 in words is "forty-six million, six hundred sixty-four thousand, four hundred twenty-one".