46997221 has 2 divisors, whose sum is σ = 46997222. Its totient is φ = 46997220.

The previous prime is 46997213. The next prime is 46997287. The reversal of 46997221 is 12279964.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24860196 + 22137025 = 4986^2 + 4705^2 .

It is a cyclic number.

It is not a de Polignac number, because 46997221 - 2³ = 46997213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46997201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23498610 + 23498611.

It is an arithmetic number, because the mean of its divisors is an integer number (23498611).

Almost surely, 2^46997221 is an apocalyptic number.

It is an amenable number.

46997221 is a deficient number, since it is larger than the sum of its proper divisors (1).

46997221 is an equidigital number, since it uses as much as digits as its factorization.

46997221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 46997221 is about 6855.4519179993. The cubic root of 46997221 is about 360.8754951590.

The spelling of 46997221 in words is "forty-six million, nine hundred ninety-seven thousand, two hundred twenty-one".