46404209 has 2 divisors, whose sum is σ = 46404210. Its totient is φ = 46404208.

The previous prime is 46404191. The next prime is 46404217. The reversal of 46404209 is 90240464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41319184 + 5085025 = 6428^2 + 2255^2 .

It is a cyclic number.

It is not a de Polignac number, because 46404209 - 2¹⁶ = 46338673 is a prime.

It is a super-2 number, since 2×46404209² = 4306701225831362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (46454209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23202104 + 23202105.

It is an arithmetic number, because the mean of its divisors is an integer number (23202105).

Almost surely, 2^46404209 is an apocalyptic number.

It is an amenable number.

46404209 is a deficient number, since it is larger than the sum of its proper divisors (1).

46404209 is an equidigital number, since it uses as much as digits as its factorization.

46404209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 46404209 is about 6812.0634906025. The cubic root of 46404209 is about 359.3512208992.

The spelling of 46404209 in words is "forty-six million, four hundred four thousand, two hundred nine".