44666861 has 2 divisors, whose sum is σ = 44666862. Its totient is φ = 44666860.

The previous prime is 44666849. The next prime is 44666879. The reversal of 44666861 is 16866644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22857961 + 21808900 = 4781^2 + 4670^2 .

It is a cyclic number.

It is not a de Polignac number, because 44666861 - 2¹⁰ = 44665837 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44666561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22333430 + 22333431.

It is an arithmetic number, because the mean of its divisors is an integer number (22333431).

Almost surely, 2^44666861 is an apocalyptic number.

It is an amenable number.

44666861 is a deficient number, since it is larger than the sum of its proper divisors (1).

44666861 is an equidigital number, since it uses as much as digits as its factorization.

44666861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 41.

The square root of 44666861 is about 6683.3270906039. The cubic root of 44666861 is about 354.8094222740.

The spelling of 44666861 in words is "forty-four million, six hundred sixty-six thousand, eight hundred sixty-one".