46973221 has 4 divisors (see below), whose sum is σ = 47501100. Its totient is φ = 46445344.

The previous prime is 46973219. The next prime is 46973273. The reversal of 46973221 is 12237964.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18232900 + 28740321 = 4270^2 + 5361^2 .

It is a cyclic number.

It is not a de Polignac number, because 46973221 - 2¹ = 46973219 is a prime.

It is a super-2 number, since 2×46973221² = 4412966982229682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46973281) 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, 263806 + ... + 263983.

It is an arithmetic number, because the mean of its divisors is an integer number (11875275).

Almost surely, 2^46973221 is an apocalyptic number.

It is an amenable number.

46973221 is a deficient number, since it is larger than the sum of its proper divisors (527879).

46973221 is an equidigital number, since it uses as much as digits as its factorization.

46973221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527878.

The product of its digits is 18144, while the sum is 34.

The square root of 46973221 is about 6853.7012628214. The cubic root of 46973221 is about 360.8140554510.

The spelling of 46973221 in words is "forty-six million, nine hundred seventy-three thousand, two hundred twenty-one".