46399289 has 2 divisors, whose sum is σ = 46399290. Its totient is φ = 46399288.

The previous prime is 46399277. The next prime is 46399291. The reversal of 46399289 is 98299364.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44622400 + 1776889 = 6680^2 + 1333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46399289 is a prime.

Together with 46399291, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (46399259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23199644 + 23199645.

It is an arithmetic number, because the mean of its divisors is an integer number (23199645).

Almost surely, 2^46399289 is an apocalyptic number.

It is an amenable number.

46399289 is a deficient number, since it is larger than the sum of its proper divisors (1).

46399289 is an equidigital number, since it uses as much as digits as its factorization.

46399289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 50.

The square root of 46399289 is about 6811.7023569736. The cubic root of 46399289 is about 359.3385203954.

The spelling of 46399289 in words is "forty-six million, three hundred ninety-nine thousand, two hundred eighty-nine".